Tap Shank Dimensions

For TradeMax Adaptors with Safety Clutch

A list of available adaptors is provided below.

If you do not know what size adaptor your tapping machine uses, a list of machines is provided further down this page (or you can click the shortcut links). Machine Types: Pneumatic, Pneumatic Hand Tools, Hydraulic and Electric.

Find your machine model in the list below. The adaptor size (TCS1B, TCS2B, TCS3B or TCS4B) is also provided together with a link to the relevant tapping machine on our website.

Confused? Call the staff and Radius Benders for assistance.

Adaptor Features:

  • Taps can be changed quickly without additional tooling;
  • A different adaptor is required for each tap shank size;
  • Tap shanks should have a minimum hardness of HRC 40;
  • The adjustable safety clutch protects against the breakage of worn taps and when the tap bottoms;
  • Adaptors with safety clutch, for use with left hand taps, are available on request; and
  • Tapping depth can be set off the machine.

Industry Standards

JISDIN
ISOANSI (USA)

Adaptor Sizes

TCS1BTCS2B
TCS3BTCS4B

Reducing Adaptors

TRE2/1 - Use a TCS1B adaptor in a TCS2B machineTRE3/2 - Use a TCS2B adaptor in a TCS3B machine
TRE4/2 - Use a TCS2B adaptor in a TCS4B machineTRE4/3 - Use a TCS3B adaptor in a TCS4B machine

JIS

MetricUNCDimensionAdaptor TCS_
Dia ØSquare1B2B3B
M232.5
X
  
M343.2
X
  
M4 M4.554
X
  
M5 M5.55.54.5
X
  
M6W 1/464.5
X
X
 
W 5/166.15
X
X
 
M8 M76.25
X
X
 
M10 M9W 3/875.5
X
X
 
M11W 7/1686
X
X
 
M128.56.5
X
X
 
W 1/297
X
X
 
M14 M15W 9/1610.58
X
X
 
W 5/8129 
X
 
M1612.510 
X
X
M171310 
X
X
M18W 3/41411 
X
X
M201512 
X
X
M22W 7/81713 
X
X
M24 M251915 
X
X
M26 M27W 12015 
X
X
M282117 
X
X
W 1 1/82217 
X
X
M302317 
X
X
M32W 1 1/42419  
X
M332519  
X
M34 M35W 1 3/82621  
X
M36 M382821  
X
M39 M40W1 1/23023  
X
M42W 1 5/83226  
X
M45W 1 3/43526   
M48W 1 7/83829   
PTPF
Dimension
Adaptor TCS_
Dia Ø
Square
1B
2B
3B
1/81/886   
1/41/4119   
3/83/81411   
1/21/21814   
5/81915   
3/43/42317   
7/82419   
112621   
1 1/82821   
1 1/41 1/43226   
1 3/81 3/83526   
1 1/21 1/23829   

DIN

Dimension

Dia Ø × Square

DIN 352DIN 371Adaptor TCS_
1B2B
2.5×2.1M1M1  
M1.1M1.1  
M1.2M1.2  
M1.4M1.4  
M1.6M1.6  
M1.8M1.8  
2.8×2.1M2M2
X
 
M2.2M2.2
X
 
M2.5M2.5
X
 
3.5×2.7M3M3
X
 
4×3M3.5M3.5
X
 
4.5×3.4M4M4
X
 
6×4.9M5M5
X
X
M6M6
X
X
M8
X
X
7×5.5M10
X
X
8×6.2M8
X
X
9×7M12
X
X
10×8M10 
X
11×9M14
X
12×9M16
X
14×11M18
X
16×12M20
X
18×14.5M22
X
M24
X
20×16M27
X
22×18M30
X
25×20M33
28×22M36
32×24M39
M42
36×29M45
M48
40×32M52
45×35M56

ISO

Dimension

Dia Ø × Square

Metric

ISO 529

Metric

Adaptor TCS_
1B2B
2.24x1.8M3   

2.5x2.0

M3.5M2
X
 
2.8x2.24 M2.2
X
 
 M2.5
X
 
3.15x2.5M4M3
X
 
3.55x2.8M4.5M3.5
X
 
4x3.15M5M4
X
 
4.5x3.55M6 
X
 
5x4 M5
X
 
6.3x5M8M6
X
X
8x6.3M10M8
X
X
9x7.1M12 
X
X
10x8 M10
X
X
11.2x9M14  
X
12.5x10M16 
X
14x11.2M18 
X
M20  
X
16x12.5M22 
X
18x14M24  
X
20x16M27
X
M30
X
22.4x18M33 
25x20M36 
28x22.4M39 
M42 
31.5x25M45 
M48 
35.5x28M52
M56
40x31.5M60
M64

ANSI (USA)

Dimension
Machine Screw Size No.
Nominal Factional Diameter Inches
Adaptor TCS_
ShankSquare
1B
2B
0.1410.11001/16
X
 
0.1410.1101
X
0.1410.1102
X
0.1410.11033/32
X
 
0.1410.1104
X
0.1410.11051/8
X
 
0.1410.1106
X
0.1680.13185/32
X
 
0.1940.152103/16
X
 
0.2200.16512
X
0.2550.191141/4
X
X
0.3180.2385/16
X
X
0.3810.2863/8
X
X
0.3230.2427/16
X
X
0.3670.2751/2
X
X
0.4290.3229/16 
X
0.4800.3605/8 
X
0.5420.40611/16 
X
0.5900.4423/4 
X
0.6520.48913/16 
X
0.6970.5237/8 
X
0.7600.57015/16  
0.8000.6001  
0.8950.67211/16  
0.8960.67211/8  
1.0210.76613/16  
1.0210.76611/4  
1.1080.83115/16  
1.1080.83113/8  
1.2330.92517/16  
1.2330.92511/2  
1.3050.97915/8  
1.4301.07213/4  
1.5191.13917/8  
1.6441.2332  
0.31250.2341/16 NPT  
0.43750.3281/8 NPT  
0.56250.4211/4 NPT  
0.7000.5313/8 NPT  
0.68750.5151/2 NPT  
0.90630.6793/4 NPT  
1.1250.8431" NPT  
1.31250.98411/4 NPT  
1.5001.12511/2 NPT  

List of TradeMax Tapping Machines

Below is a list of all the TradeMax Tapping Machines (including models no longer available) and size of their adaptor.

Pneumatic Tapping Hand Tools

Model
Adaptor
TCS_
ATH-12-1

1B

ATH-12-2
1B
ATH-12-3
1B
 
ATR-12-2
1B
ATR-12-3
1B

Hydraulic Tapping Machines

Model
Adaptor
TCS_
HM-22
2B
HM-32
3B
HM-42
3B
HM-50
4B
HM-60
4B
 
HMT-22

2B

HMT-32
3B
HMT-42
3B
HMT-50
4B
HMT-60
4B
 
HMA-22
2B
HMA-32
3B
HMA-42
3B
HMA-50
4B
 
HMTA-22
2B
HMTA-32
3B
HMTA-42
3B
HMTA-50
4B

Electric Tapping Machines

Model
Adaptor
TCS_
DMR-16

2B

DMR-24
2B
DMR-32
3B
 
DMT-16
2B
DMT-24
2B
DMT-32
3B
 
EMAQ-32
3B
  
EMAT-32
3B