|
|
Machine Tool Shanks & Tapers
|
Kwik-Switch Taper (Universal Engineering)
|
Kwik-Switch was developed by Universal Engineering who manufactured it for many years.
Collis makes fully compatible tooling they call Rapid-Switch. SPI and Smith Tool also make compatible tooling.
The Kwik-Switch 200 is about the same size as the NMTB #30 but has more mass and a more positive lock.
|
|
 
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 |
| |
 
Kwik-Switch Tooling for sale:
|
[Back to Top of page]
SPI Quick Change shank
|
 This Tool Shank looks very similar to Universal Kwik-Switch. However it is totally incompatible with Kwik-Switch.
I don't know who developed it or if there is an industry standard.
See SPI Catalog pages for tooling with this shank.
Nikken and Yuasa also make (made ?) compatible tooling.
Independent of who made the unit, on this site I refer to all shanks and masters compatible with the
 "SPI Quick Change 75-3xx shank" as "SPI Quick Change 3" or "SPIQC-3".
Likewise with sizes 4 and 5 (SPIQC-4 and SPIQC-5).
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|
 
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 |
* I don't know what the actual D3 max value is. The values given are the max of several measured values and
should be close to the actual max value.
[Back to Top of page]
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.
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|
 
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 |
[Back to Top of page]
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 Erickson Quick-Change Spindle discussion below the tables)
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|
 
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 |
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 |
|
 
|
|
NMTB tool holder compatibility with Erickson Quick-Change Spindles:
The 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, small variations in the tool holder flange thickness and the distance from the gage line of the taper to the outward face of the flange were not an issue when selecting one manufacturer of tool holder versus another.
The 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 holder taper up into the spindle. Two "lips" in the nut push against the outer face of the tool holder flange. The key dimension 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 (dimension L4 + L5 in above tables). L4+L5 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.
All NMTB holders made by Erickson work fine and I've read that Collis and Valenite holders work fine (at least the ones made in the last 15 years or so). I've also heard that Kennametal NMTB 30 holders work well. The compatibility of other holders is in question. However, all is not lost, the flange face of the holders that do not fit can be turned or ground down a small amount and then they work just fine. Erickson even put out a procedure to do this very thing (does anyone have a copy of the Erickson procedure ?).
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[Back to Top of page]
BT Taper
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Also known as: JMTBA AS-403 "BT", JIS B 6339 - 1986, JIS B6339 - 1992, ISO 7388/1 - 1983
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|
 
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 |
[Back to Top of page]
R8 Shank
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Also referred to as M1TR taper. This shank is held in place by a drawbar.
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|
 
[Back to Top of page]
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.
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|
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 |
? |
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) |
[Back to Top of page]
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 |
|
 
|
[Back to Top of page]
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 |
[Back to Top of page]
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 |
[Back to Top of page]
Automotive Shank
|
Referred to as Auto Shank, Acme shank or Adjustable Adapter.
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 |
[Back to Top of page]
VDI Shank
 
Size |
D1 |
L1 |
D2 |
D3 |
H2 |
L2 |
L3 |
L32 |
L4 |
L5 |
R1 |
25 |
0.081
(20.6) |
1.9
(48.3) |
0.394
(10.0) |
?
(?) |
0.925
(23.5) |
?
(?) |
?
(?) |
?
(?) |
?
(?) |
?
(?) |
?
(?) |
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) |
[Back to Top of page]
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.
HSK-A is designed for use with Automatic Tool Changers and have tool orientation features on the flange
The taper on all HSK shanks is 10:1.
|
|
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 |
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 |
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 |
Size |
Form |
D1 |
D2 |
L1 |
L2 |
25 |
F |
? |
25 |
? |
? |
32 |
F |
? |
32 |
? |
? |
40 |
F |
? |
40 |
? |
? |
50 |
F |
? |
50 |
? |
? |
63 |
F |
38 |
63 |
51 |
26 |
[Back to Top of page]
KM 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.
|
|
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) |
[Back to Top of page]
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 |
[Back to Top of page]
Komet ABS
 
ABS Size |
d
inch (mm) |
d1
inch (mm) |
L
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) |
ABS 63 |
2.480 (63) |
1.339 (34) |
1.496 (38) |
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) |
[Back to Top of page]
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 a "standard" that defines the shank or if its a Beaver Tool proprietary shank.
The following dimensions are average caliper measurements, so use them accordingly.
|
|
|
Flange thickness ranged from 0.35" to 0.5"
on the 5 units I measured.
Key-slot depth is approximately 0.2".
The dimples are approximately 0.4" deep,
3/8" dia throat and 0.6" dia. mouth.
|
 
[Back to Top of page]
Unknown Taper #1
|
I don't know who made it, developed it or if there is an industry standard.
The following dimensions are taken from 2 Endmill Holders I have.
If you know what these are, Please enlighten the rest of us.
|
|
 
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 |
[Back to Top of page]
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 |
[Back to Top of page]
Whistle Notch Shank - DIN6535 form HE
|
The following are sample Whistle Notch shanks that purport to comply with DIN6535 form HE
|
|
 
[Back to Top of page]
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:
Kennametal "Machining Center Tooling" Catalog.
Briney Tooling Systems
TSD Tooling Systems Division
Milling Machine Tapers by Rick Dulas
Logan Actuator Website
Practical Machinist Forum Discussions
|
|
Inventory Index
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