These keys are precision heat treated, hardened, and tempered to ensure maximum toughness at the wrench core. The continuous "loop" handle is correctly proportioned and contoured for balanced two-fisted grip and extra leverage. Available individually or in sets.
Group codes Represented: THW
Part# Examples: 31916THW
Hex keys provide a precision fit for maximum engagement, and prevent rounding of hex sockets. They are made of a heat treated alloy steel that meets ANSI specifications B18.3 and GGG-K-275. Stocked in short and long arm sizes in diameters from 0.028" to 1 3/4" and lengths from 15/16" to 23 1/2". Available with extra long arm sizes. and in sets
Group codes Represented: LAHK, SAHK, MHK
Part# Example: 14LAHK, 62SAHK
| Nominal Key or Bit and Socket Size
|
W
|
Y
|
B
|
C
|
R
|
K
|
|||||||
| Hex Width Across the Flats
|
Hex Width Across the Corners
|
Length of Short Arm
|
Length of Long Arm
|
Radius of Bend
|
Chamfer
|
||||||||
| Short Series
|
Long Series
|
||||||||||||
Max |
Min |
Max |
Min |
Max |
Min |
Max |
Min |
Max |
Min |
Min |
Max |
||
.... |
.028 |
.0280 |
.0275 |
.0314 |
.0300 |
.312 |
.125 |
1.312 |
1.125 |
2.688 |
2.500 |
.062 |
.003 |
.035 |
.0350 |
.0345 |
.0393 |
.0378 |
.438 |
.250 |
2.766 |
2.578 |
.004 |
||||
.050 |
.0500 |
.0490 |
.0560 |
.0540 |
.625 |
.438 |
1.750 |
1.562 |
2.938 |
2.750 |
.006 |
||
1/16 |
.062 |
.0625 |
.0615 |
.0701 |
.0680 |
.656 |
.469 |
1.844 |
1.656 |
3.094 |
2.906 |
.008 |
|
5/64 |
.078 |
.0781 |
.0771 |
.0880 |
.0859 |
.703 |
.516 |
1.969 |
1.781 |
3.281 |
3.094 |
.078 |
|
3/32 |
.094 |
.0937 |
.0927 |
.1058 |
.1035 |
.750 |
.562 |
2.094 |
1.906 |
3.469 |
3.281 |
.094 |
.009 |
7/64 |
.109 |
.1094 |
.1079 |
.1238 |
.1210 |
.797 |
.609 |
2.219 |
2.031 |
3.656 |
3.469 |
.109 |
.014 |
1/8 |
.125 |
.1250 |
.1235 |
.1418 |
.1390 |
.844 |
.656 |
2.344 |
2.156 |
3.844 |
3.656 |
.125 |
.015 |
9/64 |
.141 |
.1406 |
.1391 |
.1593 |
.1566 |
.891 |
.703 |
2.469 |
2.281 |
4.031 |
3.844 |
.141 |
.016 |
5/32 |
.156 |
.1562 |
.1547 |
.1774 |
.1745 |
.938 |
.750 |
2.594 |
2.406 |
4.219 |
4.031 |
.156 |
|
3/16 |
.188 |
.1875 |
.1860 |
.2135 |
.2105 |
1.031 |
.844 |
2.844 |
2.656 |
4.594 |
4.406 |
.188 |
.022 |
7/32 |
.219 |
.2187 |
.2172 |
.2490 |
.2460 |
1.125 |
.938 |
3.094 |
2.906 |
4.969 |
4.781 |
.219 |
.024 |
1/4 |
.250 |
.2500 |
.2485 |
.2845 |
.2815 |
1.219 |
1.031 |
3.344 |
3.156 |
5.344 |
5.156 |
.250 |
.030 |
5/16 |
.312 |
.3125 |
.3110 |
.3570 |
.3531 |
1.344 |
1.156 |
3.844 |
3.656 |
6.094 |
5.906 |
.312 |
.032 |
3/8 |
.375 |
.3750 |
.3735 |
.4285 |
.4238 |
1.469 |
1.281 |
4.344 |
4.156 |
6.844 |
6.656 |
.375 |
.044 |
7/16 |
.438 |
.4375 |
.4355 |
.5005 |
.4944 |
1.594 |
1.406 |
4.844 |
4.656 |
7.594 |
7.406 |
.438 |
.047 |
1/2 |
.500 |
.5000 |
.4975 |
.5715 |
.5650 |
1.719 |
1.531 |
5.344 |
5.156 |
8.344 |
8.156 |
.500 |
.050 |
9/16 |
.562 |
.5625 |
.5600 |
.6420 |
.6356 |
1.844 |
1.656 |
5.844 |
5.656 |
9.094 |
8.906 |
.562 |
.053 |
5/8 |
.625 |
.6250 |
.6225 |
.7146 |
.7080 |
1.969 |
1.781 |
6.344 |
6.156 |
9.844 |
9.656 |
.625 |
.055 |
3/4 |
.750 |
.7500 |
.7470 |
.8580 |
.8512 |
2.219 |
2.031 |
7.344 |
7.156 |
11.344 |
11.156 |
.750 |
.070 |
7/8 |
.875 |
.8750 |
.8720 |
1.0020 |
.9931 |
2.469 |
2.281 |
8.344 |
8.156 |
12.844 |
12.656 |
.875 |
.076 |
1 |
1.000 |
1.0000 |
.9970 |
1.1470 |
1.1350 |
2.719 |
2.531 |
9.344 |
9.156 |
14.344 |
14.156 |
1.000 |
.081 |
| Tolerance on Length of Key Bits
|
±0.062 | ||||||||||||
.028 |
1.1 |
.86 |
.035 |
2.3 |
1.80 |
.050 |
6.5 |
5.00 |
1/16 |
11.9 |
9.50 |
5/64 |
25.0 |
19.40 |
3/32 |
43.0 |
33.50 |
7/64 |
68.0 |
52.90 |
1/8 |
98.0 |
77.90 |
9/64 |
146.0 |
117.00 |
5/32 |
195.0 |
156.00 |
3/16 |
342.0 |
273.00 |
7/32 |
535.0 |
428.00 |
1/4 |
770.0 |
615.00 |
5/16 |
1600.0 |
1315.00 |
3/8 |
2500.0 |
2150.00 |
7/16 |
4500.0 |
3665.00 |
1/2 |
6300.0 |
5130.00 |
9/16 |
8750.0 |
7010.00 |
5/8 |
12000.0 |
9810.00 |
3/4 |
19500.0 |
15570.00 |
7/8 |
29000.0 |
23400.00 |
1 |
43500.0 |
35100.00 |
