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Machine Tool Shanks & Tapers

Index    
14 pt DotABS Shank 14 pt DotAutomotive Shank 14 pt DotAXA Shank
14 pt DotB-Taper (DIN ISO 239) 14 pt DotB&S Taper 14 pt DotBeaver Quick-Change
14 pt DotBT Shank 14 pt DotCAT Shank 14 pt DotDIN 2080
14 pt DotDV Shank 14 pt DotErickson Quick-Change 14 pt DotFL QC Taper Shank
14 pt DotHSK Shank 14 pt DotJacobs Taper 14 pt DotJarno Taper
14 pt DotKM (VM) Shank 14 pt DotKomet ABS 14 pt DotKwik-Switch
14 pt DotMonarch 14 pt DotMorse Taper 14 pt DotNMTB Shank
14 pt DotR8 Shank 14 pt DotSDH Quick Change shank 14 pt DotSPI Quick Change shank
14 pt DotUnknown #1 14 pt DotUnknown #2 14 pt DotVDI Shank
14 pt DotWeldon 14 pt DotWhistle Notch 14 pt Dot~

Kwik-Switch Taper (Universal Engineering)

Kwik-Switch was developed by Universal Engineering.
Collis makes fully compatible tooling they call Rapid-Switch. SPI and Smith Tool also make compatible tooling.

Size

A

B

C

E

F

H

J

K

L

M

100

0.875

1.44

0.16

0.312

0.250

1.12

1.56

0.375

1.06

0.68

200

1.312

2.50

0.22

0.375

0.312

1.75

2.12

0.500

1.68

0.97

300

1.625

2.94

0.28

0.438

0.375

2.00

2.50

0.500

1.94

1.22

400

2.250

3.62

0.34

0.500

0.438

2.81

3.25

0.625

2.75

1.7


  Tools-n-Gizmos.com65ptSpace Kwik-Switch Tooling for sale: 65ptSpaceTools-n-Gizmos.com
  14pt DotKwik-Switch 100
14pt DotKwik-Switch 200 (All)
14x30 DashBoring Heads & Adapters
14x30 DashCollet Chucks
14x30 DashEnd Mill Holders
14x30 DashMasters & Accessories
14x30 DashAll the rest
14pt DotKwik-Switch 300 (All)
14x30 DashCollet Chucks
14x30 DashEnd Mill Holders
14x30 DashMasters & Accessories
14x30 DashAll the rest
14pt DotKwik-Switch 400 (All)
14x30 DashCollet Chucks
14x30 DashEnd Mill Holders
14x30 DashMasters & Accessories
14x30 DashAll the rest
 
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SPI Quick Change shank

14 pt DotThis Tool Shank looks very similar to Universal Kwik-Switch. However it is totally incompatible with Kwik-Switch.
14 pt DotI don't know who developed it or if there is an industry standard.
14 pt DotSee SPI Catalog pages for tooling with this shank.
14 pt DotNikken and Yuasa also make (made ?) compatible tooling.
14 pt DotIndependent of who made the unit, on this site I refer to all shanks and masters compatible with the
15ptSpace"SPI Quick Change 75-3xx shank" as "SPI Quick Change 3" or "SPIQC-3".
15ptSpaceLikewise with sizes 4 and 5 (SPIQC-4 and SPIQC-5).

Measured values from actual units (mostly provided by Brian and Tom of Scorpion Technologies Ltd.)

Size

SPI #

Nikken #

Yuasa #

D1

D2

D3 max*

L1

L2

L3

L4

L5

3

75-3xx

xx30-xx

?

0.70

1.24

1.34

1.88

2.17

0.19

0.35

1.57

4

75-4xx

xx40-xx

?

0.85

1.50

1.65

2.24

2.54

0.22

0.45

1.97

5

75-5xx

xx50-xx

?

1.28

2.25

2.6

3.38

3.81

0.37

0.615

2.81

15ptSpace* I don't know what the actual D3 max value is. The values given are the max of several measured values and
15ptSpace   should be close to the actual max value.

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CAT, CV or V-flange Taper

aka: ANSI B5.50, Caterpillar "V-Flange" standard, ISO 7388-1, IS 11173 (TC), DIN 69871, NFE 62540.
Units built to the international standards (DIN, ISO & NFE) are commonly considered interchangeable with
ANSI (Caterpillar) shanks. However, there are a few differences.

ANSI B5.50 (from Kennametal catalog 7060)

Size

D1

D2

D3

L

F1

F2 min

A

G

30

1.250
(31.75)

1.812
(46.02)

1.250
(31.75)

1.875
(47.63)

0.750
(19.05)

1.375
(35.00)

0.125
(3.18)

1/2-13
thread

40

1.750
(44.45)

2.500
(63.05)

1.750
(44.45)

2.687
(68.25)

0.750
(19.05)

1.375
(35.00)

0.125
(3.18)

5/8-11
thread

45

2.250
(57.15)

3.250
(82.50)

2.250
(57.15)

3.250
(82.55)

0.750
(19.05)

1.375
(35.00)

0.125
(3.18)

3/4-10
thread

50

2.750
(69.85)

3.875
(98.41)

2.750
(69.85)

4.000
(101.60)

0.750
(19.05)

1.375
(35.00)

0.125
(3.18)

1-8
thread

60

4.250
(107.95)

5.500
(139.70)

4.250
(107.95)

6.375
(161.93)

0.750
(19.05)

1.500
(38.10)

0.125
(3.18)

1 1/4-7
thread


ISO 7388-1, DIN 69871, NFE 62540

Size

D1

D2

D3 max

L

F1

F2 min

A

G

30

31.75

50

45

47.8

15.9

35

3.2

M12

40

44.45

63.55

50

68.4

15.9

35

3.2

M16

45

57.15

82.55

63

82.7

15.9

35

3.2

M20

50

69.85

97.5

80

101.75

15.9

35

3.2

M24


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14pt DotCAT-40 65ptSpace 14pt DotCAT-45 65ptSpace 14pt DotCAT-50
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NMTB (Quick Change) Shank

ANSI B5.18, National Machine Tool Builders' Association, 1927. DIN 2080 / IS 2340, ISO R 290-2583
Also called Quick Change, NMTB, MM, National Standard, American Standard Machine Taper, etc.
Units built to the ISO standards are commonly considered interchangeable with ANSI units. However,
there are a few differences. (See Tables below). Most (but not all) NMTB shanks are compatible with
the corresponding size Erickson Quick-Change Spindles. (See discussion below the tables).

15 pixel space

ANSI B5.18 (from Kennametal catalog 7060)

Size

D1

D2

D3

D4 max

D5*

L1

L2

L3

L4

L5

L6

G

30

1.250
[31.75]

0.655
[16.24]

0.673
[17.09]

1.380
[35.05]

1.812
[46.02]

2.690
[68.33]

0.810
[20.57]

0.125
[3.18]

0.076
[1.93]

0.344
[8.74]

0.359
[9.12]

1/2-13
thread

40

1.750
[44.45]

0.935
[23.75]

0.984
[25.00]

1.890
[48.0]

2.500
[63.5]

3.690
[93.73]

1.180
[29.97]

0.188
[4.78]

0.076
[1.93]

0.313
[7.95]

?

5/8-11
thread

50

2.750
[69.85]

1.495
[37.97]

1.545
[39.24]

2.760
[68.6]

3.500
[88.9]

5.000
[127.0]

1.000
[25.4]

0.188
[4.78]

0.141
[3.58]

0.453
[11.51]

?

1-8
thread

* These are Kennametal dimensions. D5 varies with different mfgs. My Erickson Quick-Change 30 master
     can accept up to 1.86" dia flange. Some import NMTB-30 tooling I've seen is as large as 1.96".

ISO R 297-2583 and DIN 2080

Size

D1

~

D3

D4 max

D5

L1

L2

~

L4

L5

L6 min

G

30

31.75

~

?

?

50

68.39

?

~

1.62

8

?

M12

DO40

44.45

~

22.63

50

63

93.40

?

~

1.6

10

11.0

M16

45

57.15

~

?

?

80

106.8

?

~

3.2

12

?

M20

DT50

69.85

~

34.25

78

97.5

126.8

25

~

3.2

12

16.0

M24

Size

D6

D7

L7

L8

L9

DO40

24.0

21.05

7.0

4.4

7.0

DT50

38.00

~

7.0

10

7.0

15 pixel space

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14pt DotNMTB 30 65ptSpace 14pt DotNMTB 40 65ptSpace 14pt DotNMTB 50



NMTB shank compatibility with Erickson Quick-Change Spindles:
15 pixel spaceThe NMTB shank was developed for use in the NMTB spindle which uses a draw bar to pull the shank up into the spindle. As a result, the tool flange thickness and the distance from the gage line of the taper to the outward face of the flange was not a critical dimension and was not consistent between all manufacturers of NMTB tooling.
15 pixel spaceThe Erickson Tool Company developed the Erickson Quick-Change spindle to use the NMTB 30, 40, 45 and 50 tool holders already in existence. The Erickson QC system does not use a draw bar, it uses a quarter turn "locknut" to push and hold the tool taper in the spindle. Two "lips" in the nut push against the outer face of the tool flange. The key dimension (gage distance) that causes some NMTB holders to not work in an Erickson Quick-Change spindle is the distance between the taper gage line and the outer face of the flange (gage distance = L4 + L5 in above tables). Gage distance on some NMTB holders is too large, which does not allow the "lips" in the QC nut to engage the outside face of the flange.
15 pixel spaceThe other issue is that the flange diameter (D5) on some NMTB holders (mostly cheaper imports) is too large to fit in the mouth of the Erickson Quick-Change spindle.
15 pixel spaceAll NMTB holders made by Erickson work fine and I've read that Kennametal, Collis and Valenite holders work fine (at least the ones made in the last 15 years or so). The compatibility of other holders is in question. However, all is not lost, the flange of the tools that do not fit can be ground down a small amount and then they work fine in an Erickson spindle without affecting operation in an NMTB spindle.
(See Erickson grinding procedure)
15 pixel spaceThe "tail" of the NMTB shank is not required when mounting in an Erickson Quick-Change Spindle. So 30-Taper and 40-Taper tooling, without tail, work fine as long as the flange dimensions are correct. DO40 and DT50 tooling can also be used in Erickson Quick-Change spindles, but you may need to grind down the ribbed tail on some tooling for clearance in the Erickson QC spindle.

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14pt DotQC 30 65ptSpace 14pt DotQC 40 65ptSpace 14pt DotQC 50
Note: These links only show items I have confirmed are compatible with Erickson Quick-Change Spindles.
Other items I have for sale may well be compatible but I have not verified that they are compatible.

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FL Quick Change Taper shank

14 pt DotI don't know if there is an industry standard. I assume it is proprietary to FL Tool Holders
14 pt DotThe "tail" has 2 flats for positive drive.
14 pt DotSee FL Tool Holders Catalog for tooling with this shank.

  

Values are from FL Tool Holders catalog (except where noted)

Series

D1

D2 *

L *

T

A *

1002

0.6875"

?

?

7/8-12

?

2002

1.000"

?

?

1.25-12

?

3002

1.250"

?

?

1.5-12

?

4002

1.750"

?

?

2-12

?

5002

2.250"

1.45"

4"

2.5-12

17

6002

2.750"

?

?

3-12

?

15ptSpace* These are my caliper measurements from units I have.

Tools-n-Gizmos.com35ptSpace FL Quick Change Tooling for sale 35ptSpaceTools-n-Gizmos.com
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BT Taper

Also known as: JMTBA AS-403 "BT", JIS B 6339 - 1986, JIS B6339 - 1992, ISO 7388/1 - 1983

Size

D1

D2

D3

L

F

A

G

BT30

1.250
(31.75)

1.811
(46.00)

 
( )

1.906
(48.40)

0.866
(22.00)

0.079
(2.00)

M12
thread

BT35

1.500
(38.10)

2.087
(53.00)

 
( )

2.224
(56.50)

0.945
(24.00)

0.079
(2.00)

M12
thread

BT40

1.750
(44.45)

2.480
(63.00)

 
( )

2.575
(65.40)

1.063
(27.00)

0.079
(2.00)

M16
thread

BT45

2.250
(57.15)

3.346
(85.00)

 
( )

3.260
(82.80)

1.299
(33.00)

0.118
(3.00)

M20
thread

BT50

2.750
(69.85)

3.937
(100.00)

 
( )

4.008
(101.80)

1.496
(38.00)

0.118
(3.00)

M24
thread


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14pt DotBT-30 65ptSpace 14pt DotBT-35 65ptSpace 14pt DotBT-40 65ptSpace 14pt DotBT-45 65ptSpace 14pt DotBT-50
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R8 Shank

Also referred to as M1TR taper. This shank is held in place by a drawbar.

Tools-n-Gizmos.com65ptSpace R8 Shank Tooling for sale 65ptSpaceTools-n-Gizmos.com
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Morse Taper Shank

Generally referred to as MTx (ie MT3 for a #3 Morse Taper).
The taper range is from #0 to #7, and while all have different tapers, they are approximately 5/8" per foot.
With a tang it is the same as DIN 228 Form B.

MT
Size

D1(1)
Gage Dia.

D2(2)

L2(3)

Taper
per ft.

L1

L3

H

Stub
L1(4)

Stub
L3

Stub
H

0

0.3561

0.252

2

0.62460

2-11/32

1/4

0.1562

~

~

~

1

0.475

0.369

2-1/8

0.59858

2-9/16

3/8

0.2031

1-5/16

5/16

13/64

2

0.700

0.572

2-9/16

0.59941

3-1/8

7/16

0.2500

1-11/16

7/16

19/64

3

0.938

0.778

3-3/16

0.60235

3-7/8

9/16

0.3125

2

9/16

25/64

4

1.231

1.020

4-1/16

0.62326

4-7/8

5/8

0.4787

2-3/8

11/16

33/64

4.5

1.500

1.266

4-1/2

0.62400

?

?

?

~

~

~

5

1.748

1.475

5-3/16

0.63151

6-1/8

3/4

0.6250

3

15/16

3/4

6

2.494

2.116

7-1/4

0.62565

8-9/16

1-1/8

0.7500

~

~

~

7

3.270

2.750

10

0.62400

11-5/8

1-3/8

1.1250

~

~

~

(1) D1 (gage line dia. of shank) is the diameter of the mouth of the MT socket.
(2) D2 is the diameter of the bottom of the socket at depth L2 from the mouth (D1).
(3) L2 is the length (depth) of the Socket Taper.
(4)
 
D1 and Taper of Stub (short) MT shank is same as standard length MT shank.
(Stub shanks fit in standard length sockets, but the tang will not be engaged in the tang slot of the socket)

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14pt Dot Morse Taper Shank Tooling 65ptSpace 14pt Dot Tooling with Morse Taper receptacle
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Jacobs Taper

Generally referred to as JTx (ie JT3 for a #3 Jacobs Taper).

Size

Large
End

Small
End Dia.

Taper
Length

Taper
per ft.

JT0

0.2500"

0.2284"

0.44"

0.5915

JT1

0.3840"

0.3334"

0.66"

0.9751

JT2 short

0.5488"

0.4876"

0.75"

0.9786

JT2

0.5590"

0.4876"

0.88"

0.9786

JT33

0.6240"

0.5605"

1.00"

0.7619

JT6

0.6760"

0.6241"

1.00"

0.6229

JT3

0.8110"

0.7461"

1.22"

0.6390

JT4

1.1240"

1.0372"

1.66"

0.6289

JT5

1.4130"

1.3161"

1.88"

0.6201


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14pt Dot Tools with female Jacobs Taper 65ptSpace 14pt Dot Tools with male Jacobs Taper
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B-Taper (DIN ISO 239)

Size

Large
End

Small
End Dia.

Taper
Length

Taper
per ft.**

B6

6,350mm
0.2500"

5,85mm
0.2303"

10mm
0.3937"

0.6

B10

10.094mm
0.3974"

9,4mm
0.3701"

14,5mm
0.5709"

0.5743

B12

12,065mm
0.4750"

11,1mm
0.4370"

18,5mm
0.7283"

0.6259

B16

15,733mm
0.6194"

14,5mm
0.5709"

24mm
0.9449"

0.6165

B18

17,780mm
0.7000"

16,2mm
0.6378"

32mm
1.2598"

0.5925

B18*

17,431mm
0.6863"

16,2mm
0.6378"

25mm
0.9843"

0.5909

B22

21,793mm
0.8580"

19,8mm
0.7795"

40,5mm
1.5946"

0.5905

B24

23,825mm
0.9380"

21,3mm
0.8386"

50,5mm
1.9882"

0.6

* 7mm short of DIN ISO 239
** 12((D-d)/L)
    
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Jarno Taper

Size

Large
End

Small
End Dia.

Taper
Length

Taper
per ft.

#2

0.2500"

0.2000"

1.00"

0.6000

#3

0.3750"

0.3000"

1.50"

0.6000

#4

0.5000"

0.4000"

2.00"

0.6000

#5

0.6250"

0.5000"

2.50"

0.6000

#6

0.7500"

0.6000"

3.00"

0.6000

#7

0.8750"

0.7000"

3.50"

0.6000

#8

1.0000"

0.8000"

4.00"

0.6000

#9

1.1250"

0.9000"

4.50"

0.6000

#10

1.2500"

1.0000"

5.00"

0.6000

#11

1.3750"

1.1000"

5.50"

0.6000

#12

1.5000"

1.2000"

6.00"

0.6000

#13

1.6250"

1.3000"

6.50"

0.6000

#14

1.7500"

1.4000"

7.00"

0.6000

#15

1.8750"

1.5000"

7.50"

0.6000

#16

2.0000"

1.6000"

8.00"

0.6000

#17

2.1250"

1.7000"

8.50"

0.6000

#18

2.2500"

1.8000"

9.00"

0.6000

#19

2.3750"

1.9000"

9.50"

0.6000

#20

2.5000"

2.0000"

10.00"

0.6000


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14pt Dot Tools with female Jarno Taper 65ptSpace 14pt Dot Tools with male Jarno Taper
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Brown & Sharpe Taper

Size

Large
End

Small
End Dia.

Taper
Length

Taper
per ft.

#1

0.2392"

0.2000"

0.94"

0.5020

#2

0.2997"

0.2500"

1.19"

0.5020

#3

0.3753"

0.3125"

1.50"

0.5020

#4

0.4207"

0.3500"

1.69"

0.5024

#5

0.5388"

0.4500"

2.13"

0.5016

#6

0.5996"

0.5000"

2.38"

0.5033

#7

0.7201"

0.6000"

2.88"

0.5010

#8

0.8987"

0.7500"

3.56"

0.5010

#9

1.0775"

0.9001"

4.25"

0.5009

#10

1.2597"

1.0447"

5.00"

0.5161

#11

1.4978"

1.2500"

5.94"

0.5010

#12

1.7968"

1.5001"

7.13"

0.4997

#13

2.0731"

1.7501"

7.75"

0.5002

#14

2.3438"

2.0000"

8.25"

0.5000

#15

2.6146"

2.2500"

8.75"

0.5000

#16

2.8854"

2.5000"

9.25"

0.5000

#17

3.1563"

2.7500"

9.75"

0.5000

#18

3.4271"

3.0000"

10.25"

0.5000


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Automotive Shank

An automotive shank consists of a modified straight shank with whistle-notch, a Acme threaded section and
Woodruff key for locating and driving the shank within the holder. The threads are used to set the desired depth
that the automotive-shank tool holder can be inserted into the automotive adaptor by adjusting a collar (nut)
that travels along the threads.
Referred to as Auto Shank, Acme shank or Adjustable Adapter shank.
Acme threaded shanks conform to automotive standard ANSI/ASME B5.11 (1987).

D1
Shank
Size

D2
Nut
Dia.

L1
Key
Location

Woodruff
Key Size

L2
Nut
Width

L3
Flat
Length

L4
Shank
Length

H
Flat
Depth

1/2 - 16

0.88

0.50

1/8 x 5/8

0.38

1.50

3.00

0.06

5/8 - 16

1.00

0.50

5/32 x 5/8

0.38

1.50

3.00

0.06

3/4 - 12

1.25

0.50

5/32 x 5/8

0.38

1.50

3.00

0.06

7/8 - 12

1.25

0.63

3/16 x 3/4

0.38

1.88

3.63

0.06

1 - 12

1.50

0.63

3/16 x 7/8

0.38

1.88

3.63

0.06

1 1/16 - 12

1.56

0.63

3/16 x 7/8

0.38

1.88

3.63

0.06

1 1/4 - 12

1.75

0.69

?

0.38

2.63

4.63

0.06

1 3/8 - 12

1.88

0.69

1/4 x 1"

0.38

2.63

4.63

0.06

1 7/8 - 12

2.63

0.75

5/16 x 1-1/4

0.50

3.00

5.63

0.06


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VDI Shank

Size

D1

L1

D2

D3

H2

L2

L3

L32

L4

L5

R1

25

0.983
(25)

1.9
(48.3)

0.394
(10.0)

2.28
(57.9)

0.925
(23.5)

?
(?)

1.35
(34.3)

?
(?)

?
(?)

0.28
(7.1)

?
(?)

30

1.181
(30.0)

2.165
(55.0)

0.551
(14.0)

2.677
(68.0)

1.063
(27.0)

1.169
(29.7)

1.575
(40.0)

0.787
(20.0)

0.079
(2.0)

0.276
(7.0)

0.984
(25.0)

40

1.575
(40.0)

2.480
(63.0)

0.551
(14.0)

3.268
(83.0)

1.417
(36.0)

1.169
(29.7)

1.575
(40.0)

0.787
(20.0)

0.118
(3.0)

0.276
(7.0)

1.260
(32.0)

50

1.969
(50.0)

3.071
(78.0)

0.630
(16.0)

3.858
(98.0)

1.772
(45.0)

1.406
(35.7)

1.890
(48.0)

0.945
(24.0)

0.118
(3.0)

0.315
(8.0)

1.457
(37.0)

60

2.362
(60.0)

3.701
(94.0)

0.630
(16.0)

4.843
(123.0)

2.165
(55.0)

1.720
(43.7)

2.205
(56.0)

1.102
(28.0)

0.157
(4.0)

0.394
(10.0)

1.890
(48.0)


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HSK Shank (hollow taper shank system)

I've seen numerous references to standards for the HSK shank including:
  ISO 12164, DIN 69893, DIN 29893-1 and DIN 69063-1.
The taper on all HSK shanks is 10:1.
The flange groove on forms A, B, E and F is 60 degrees

HSK-A DIN 69893-1:1996-01
14 pt DotFor use on milling machines and milling centres with automatic tool change.
14 pt DotAlso suitable for manual tool change.
14 pt DotCoolant supply through the center.
HSK-A drawing15 pixel space HSK-A Picture 115 pixel space HSK-A Picture 2

Size

Form

D1

D2

L1

L2

L3

B1

B2

B3

H1

H2

32

A

24

32

36

20

5

7

7

9

13

9.5

40

A

30

40

40

20

6

8

9

11

17

12

50

A

38

50

51

26

7.5

10.5

12

14

21

15.5

63

A

48

63

58

26

10

12.5

16

18

26.5

20

80

A

60

80

66

26

12

16

18

20

34

25

100

A

75

100

79

29

15

20

20

22

44

31.5

125

A

95

125

92

29

19

25

25

28

55.5

39.5

160

A

120

160

111

31

23

30

32

36

72

50


HSK-B DIN 69893-1:1996-01
14 pt DotCoolant supply through the flange
14 pt DotEnlarged flange diameter for rigidity
14 pt DotDrive slots are in the flange
14 pt DotFor use on milling machines, lathes and machining centers with automatic tool change
HSK-B drawing15 pixel space HSK-B Picture

Size

Form

D1

D2

L1

L2

B2

H1

H2

40

B

24

40

36

20

10

16

?

50

B

30

50

46

26

12

20

?

63

B

38

63

51

26

16

25

?

80

B

48

80

58

26

18

31.5

?

100

B

60

100

69

29

20

40

?

125

B

75

125

79

29

25

50

?

160

B

95

160

94

31

32

62.5

?


HSK-C DIN 69893-1:1996-01
14 pt DotManual tool change type
14 pt DotFor special purpose machines, transfer lines and lathes.
14 pt DotCoolant supply through the center.
HSK-C drawing15 pixel space HSK-C Picture

Size

Form

D1

D2

L1

L2

L3

B1

32

C

24

32

26

10

5

7

40

C

30

40

30

10

6

8

50

C

38

50

37.5

12.5

7.5

10.5

63

C

48

63

44.5

12.5

10

12.5

80

C

60

80

56

16

12

16

100

C

75

100

66

16

15

20


HSK-D DIN 69893-1:1996-01
14 pt DotManual tool change type
14 pt DotCoolant supply through the flange
14 pt DotEnlarged flange diameter for rigidity
14 pt DotDrive slots are in the flange
14 pt DotFor use on milling machines, lathes, drilling and grinding machines
HSK-D drawing15 pixel space HSK-D Picture

Size

Form

D1

D2

L1

L2

B2

H1

40

D

24

40

36

20

10

16

50

D

30

50

46

26

12

20

63

D

38

63

51

26

16

25

80

D

48

80

58

26

18

31.5

100

D

60

100

69

29

20

40


HSK-E DIN 69893-1:1996-01
14 pt DotHigh speed applications for automatic tool change.
14 pt DotNo rear drive slots, no drive slots in the flange.
14 pt DotCoolant supply through the center.
HSK-E drawing15 pixel space HSK-E Picture115 pixel space HSK-E Picture2

Size

Form

D1

D2

L1

L2

25

E

19

25

23

10

32

E

24

32

26

20

40

E

30

40

40

20

50

E

38

50

51

26

63

E

48

63

58

26


HSK-F DIN 69893-1:1996-01
14 pt DotHigh speed applications for automatic tool change.
14 pt DotNo rear drive slots, no drive slots in the flange.
14 pt DotEnlarged flange diameter for rigidity
HSK-F drawing15 pixel space HSK-F Picture15 pixel space HSK-F Picture

Size

Form

D1

D2

L1

L2

25

F

?

25

?

?

32

F

?

32

?

?

40

F

?

40

?

?

50

F

30

50

46

26

63

F

38

63

51

26


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KM (VM) Shank

KM tooling is designed around a short 10:1 tapered shank. The taper is self centering to promote easy tool loading and unloading in both manual and automatic applications. KM tooling is designed to have simultaneous taper and face contact. The KM clamping mechanism fits inside the taper shank of the KM unit and utilizes two angled holes, called ball tracks, machined through the shank. The locking balls are forced radially outward by a wedge-shaped piece called the lock rod.
The Valenite VM shank is the same as the Kennametal KM shank.

Size

D1

D2

D3

D4

D5

L1

L2

L3

L4 min.

B1

KM32

1.260
(32.0)

0.945
(24.0)

1.142
(29.0)

1.435
(36.44)

0.138
(3.5)

0.787
(20.0)

0.315
(8.0)

0.197
(5.0)

0.394
(10.0)

0.354
(9.0)

KM40

1.575
(40.0)

1.181
(30.0)

1.457
(37.0)

1.750
(44.44)

0.138
(3.5)

0.984
(25.0)

0.433
(11.0)

0.236
(6.0)

0.472
(12.0)

0.394
(10)

KM50

1.969
(50.0)

1.575
(40.0)

1.681
(42.7)

2.339
(59.40)

0.279
(7.0)

1.260
(32.0)

0.472
(12.0)

0.354
(9.0)

0.630
(16.0)

0.551
(14.0)

KM63

2.480
(63.0)

1.969
(50.0)

2.193
(55.7)

2.850
(72.40)

0.276
(4.0)

1.575
(40.0)

0.709
(18.0)

0.394
(10.0)

0.709
(18.0)

0.630
(16.0)

KM80

3.150
(80.0)

2.520
(64.0)

2.862
(72.7)

3.520
(89.40)

0.276
(7.0)

1.772
(45.0)

0.728
(18.5)

0.433
(11.0)

0.866
(22.0)

0.787
(20.0)


Tools-n-Gizmos.com65ptSpace KM and VM Shank Tooling for sale 65ptSpaceTools-n-Gizmos.com
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Monarch Shank

Size

Gage Dia.
D1

Driver Gear
D2

Flange
D3

L1

L2 min.

45

2.250

2.68

1.75

2.88

1.00

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SDH Shank (Morris Tooling)

Features: (from Morris Tooling literature)
14 pt DotSingle handed, ultra fast Tool changes
14 pt DotHigh degree of repeatability.
14 pt DotHolder secured and released from spindle without wrenches or keys
14 pt DotVery high torque drive capability.
14 pt DotRetention unit located inside spindle to prevent damage and contamination.
14 pt DotToolholder locked and released by simple 90 rotation.
14 pt DotAn audible ("Click") confirms the holder is positively locked into the spindle.
14 pt DotCentralising cone ensures high concentricity.
14 pt DotThrough Coolant facility up to 300psi.
dimensions in mm

Size

D1*

D2*

L1*

L2**

T**

SDH16

16

29

45

?

?

SDH20

20

36

56

18

8.8

SDH25

25

41

64

?

?

SDH28

28

44

64

19

9.6

SDH36

36

54

82

?

?

* dimension from Morris Tooling literature.
** measured from actual units
Morris Tooling catalog information

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AXA Shank

Features:
14 pt DotThe AXA shank (as I call it) is a 1" keyed straight shank with tapered depth adjustment collar.
14 pt DotThe AXA Master (or chuck) has a 1" keyed straight bore with tapered recess mouth.
14 pt DotThe shank is held in the chuck by a "draw bar" (1/2-13 cap screw) installed from the backend of the chuck shank.
14 pt DotAll the AXA tooling I have seen were made by either "TSD Microbore, Frankenmuth, MI"
15pt spaceor "DeVlieg Microbore div., Royal Oak, MI" which are closely related to each other.
14 pt DotI have no idea if an industry standard exists for this shank or how prevalent they are.



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Komet ABS

ABS Size

d
inch (mm)

d1
inch (mm)

L
inch (mm)

D2 (dia)
inch (mm)

P (Pin)
inch (mm)

ABS 25

0.984 (25)

0.512 (13)

0.787 (20)

? (?)

? (?)

ABS 32

1.260 (32)

0.630 (16)

0.906 (23)

? (?)

? (?)

ABS 40

1.575 (40)

0.787 (20)

1.102 (28)

? (?)

? (?)

ABS 50

1.969 (50)

1.102 (28)

1.220 (31)

0.51 (13)

1/4 (6.4)

ABS 63

2.480 (63)

1.339 (34)

1.496 (38)

0.65 (16.5)

3/8 (9.5)

ABS 80

3.150 (80)

1.811 (46)

1.693 (43)

? (?)

? (?)

ABS 100

3.937 (100)

2.205 (56)

2.165 (55)

? (?)

? (?)

ABS 125

4.921 (125)

2.756 (70)

2.756 (70)

? (?)

? (?)

ABS 160

6.299 (160)

3.543 (90)

3.543 (90)

? (?)

? (?)


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Unknown #2

The only information I have on this Shank is taken from units I have in hand. I have no idea if there is an "Industry standard" that defines the shank or if its a Valenite proprietary shank. The following dimensions are average caliper measurements, so use them accordingly.

The basic shank is the same as the Komet ABS shank, However there are 2 major differences:
14pt DotThe cross pin:
15pt spaceABS shank has a round fixed length pin with socket on one side and point on the other
15pt spaceUNK#2 shank has a square pin that changes length as you turn the central socket head screw.
14pt DotThe indexing key:
15pt spaceABS shank has small round pin, UNK#2 shank has a large rectangular tang.

Size

D
inch (mm)

D1
inch (mm)

L
inch (mm)

D2 (sq)
inch (mm)

T (tang)
inch (mm)

50

1.97 (50)

1.1 (28)

1.22 (31)

0.47 (12)

0.47 (12)


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Beaver Quick Change Shank

The only information I have on the Beaver Quick Change Shank is taken from units I have in hand. I have no idea if there is an "industry standard" that defines the shank or if its a Beaver Tool proprietary shank. The following dimensions are average caliper measurements, so use them accordingly.
14pt DotFlange thickness ranged from 0.35" to 0.5"
15pt spaceon the 5 units I measured.

14pt DotKey-slot depth is approximately 0.2".

14pt DotThe dimples are approximately 0.4" deep,
15pt space3/8" dia throat and 0.6" dia. mouth.


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Unknown Taper #1

14 pt DotI don't know who made it, developed it or if there is an industry standard.
14 pt DotThe following dimensions are taken from 2 Endmill Holders I have.
14 pt DotIf you know what these are, Please enlighten the rest of us.
14 pt DotGerry S. in Australia says the taper is the same as the taper on the tooling for his "herbert no1 horizontal and
15pt spacevertical milling machine", however the drive system is different. His holders have a driving ring with two
15pt spacecutouts at 180 deg. to each other which engage lugs on the spindle, while these have lugs which engage
15pt spacecutouts on the spindle.

Measured values from actual units.

D1

D2

D3

L1

L2

L3

L4

L5

0.73

1.405

1.415

2.35

2.72

0.32

0.55

2.21


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Weldon Shank

Standard Weldon Shank produced by The Weldon Tool Company.
Lots of other manufactures produce shanks with a "Weldon Flat".

S

U

V

W min.

W max.

X

Y

3/8

1-9/16

25/32

0.280

0.282

0.050

~

1/2

1-25/32

57/64

0.330

0.332

0.060

~

5/8

1-29/32

61/64

0.400

0.402

0.065

~

3/4

2-1/32

1-1/64

0.455

0.457

0.065

~

7/8

2-1/32

1-1/64

0.455

0.457

0.065

1/2

1

2-9/32

1-9/64

0.515

0.517

0.075

1/2

1-1/4

2-9/32

1-9/64

0.515

0.517

0.094

1/2

1-1/2

2-11/16

1-3/16

0.515

0.517

0.094

9/16

2

3-1/4

1-27/32

0.700

0.702

0.100

27/32

2-1/2

3-1/2

1-15/16

0.700

0.702

0.100

27/32


Tolerances

Element

Range

Direction

Tolerance

S

All Sizes

Minus

0.0001 to 0.0005

U

All Sizes

Plus or Minus

1/32

V

All Sizes

Plus or Minus

1/64

X

All Sizes

Minus

1/64

Y

7/8" to 2-1/2"

Plus or Minus

1/32

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Whistle Notch Shank - DIN6535 form HE

The following are sample Whistle Notch shanks that purport to comply with DIN6535 form HE

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Note: The specifications and information provided on this page are intended for part identification purposes only.
Although we believe them to be correct, dimensions should not be used for part construction or inspection.

The above information was collected from numerous sources, including:
14pt Dot Kennametal "Machining Center Tooling" Catalog.
14pt Dot Briney Tooling Systems
14pt Dot TSD Tooling Systems Division
14pt Dot Milling Machine Tapers by Rick Dulas
14pt Dot Logan Actuator Website
14pt Dot Practical Machinist Forum Discussions

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