Consolidated Tech Man - Holo-Krome

TABLE 17 ALLEN WRENCHES AND BITS
TABLE 17 DIMENSIONS (3)
NOMINAL
KEY OR BIT
AND
SOCKET SIZE
0.028
0.035
0.050
1/16 0.062
5/64
3/32
7/64
1/8
9/64
5/32
3/16
7/32
1/4
5/16
3/8
7/16
1/2
9/16
5/8
3/4
7/8
1
1-1/4
1-1/2
0.078
0.094
0.109
0.125
0.141
0.156
0.188
0.219
0.250
0.312
0.375
0.438
0.500
0.562
0.625
0.750
0.875
1.000
1.250
1.500
W
HEXAGON WIDTH
ACROSS FLATS
MAX. MIN.
0.0280
0.0350
0.0500
0.0625
0.0781
0.0937
0.1094
0.1250
0.1406
0.1562
0.1875
0.2187
0.2500
0.3125
0.3750
0.4375
0.5000
0.5625
0.6250
0.7500
0.8750
1.0000
1.2500
1.5000
0.0275
0.0345
0.0490
0.0615
0.0771
0.0927
0.1079
0.1235
0.1391
0.1547
0.1860
0.2172
0.2485
0.3110
0.3735
0.4355
0.4975
0.5600
0.6225
0.7470
0.8720
0.9970
1.2430
1.4930
HEXAGON WIDTH
ACROSS CORNERS
MAX. MIN.
0.0314
0.0393
0.0560
0.0701
0.0880
0.1058
0.1238
0.1418
0.1593
0.1774
0.2135
0.2490
0.2845
0.3570
0.4300
0.5018
0.5735
0.6452
0.7169
0.8603
1.0036
1.1470
—
—
2. For nominal socket sizes above 1 in. it is recommended that bits be used
in conjunction with standard hexagon wrenches or power drives. Bits are
available, but lengths are not standardized.
20
Y
0.0300
0.0378
0.0540
0.0680
0.0859
0.1035
0.1210
0.1390
0.1566
0.1745
0.2105
0.2460
0.2815
0.3531
0.4238
0.4944
0.5650
0.6356
0.7080
0.8512
0.9931
1.1350
—
—
B
LENGTH OF
SHORT ARM
MAX. MIN.
0.312
0.438
0.625
0.656
0.703
0.750
0.797
0.844
0.891
0.938
1.031
1.125
1.219
1.344
1.469
1.594
1.719
1.844
1.969
2.219
2.469
2.719
3.250
3.750
1. Each end is square with the axis of each arm within 4° and edges may
be sharp or chamfered at the option of Holo-Krome, the chamfer not to
exceed K.
0.125
0.250
0.438
0.469
0.516
0.562
0.609
0.656
0.703
0.750
0.844
0.938
1.031
1.156
1.281
1.406
1.531
1.656
1.781
2.031
2.281
2.531
2.750
3.250
C
LENGTH OF LONG ARM
SHORT SERIES LONG SERIES
MAX. MIN. MAX. MIN.
1.312
1.312
1.750
1.844
1.969
2.094
2.219
2.344
2.469
2.594
2.844
3.094
3.344
3.844
4.344
4.844
5.344
5.844
6.344
7.344
8.344
9.344
11.500
13.500
1.125
1.125
1.562
1.656
1.781
1.906
2.031
2.156
2.281
2.406
2.656
2.906
3.156
3.656
4.156
4.656
5.156
5.656
6.156
7.156
8.156
9.156
11.000
13.000
2.688
2.766
2.938
3.094
3.281
3.469
3.656
3.844
4.031
4.219
4.594
4.969
5.344
6.094
6.844
7.594
8.344
9.094
9.844
11.344
12.844
14.344
—
—
2.500
2.578
2.750
2.906
3.094
3.281
3.469
3.656
3.844
4.031
4.406
4.781
5.156
5.906
6.656
7.406
8.156
8.906
9.656
11.156
12.656
14.156
—
—
R
RADIUS
K
OF BEND CHAMFER
MIN.
0.062
0.062
0.062
0.062
0.078
0.094
0.109
0.125
0.141
0.156
0.188
0.219
0.250
0.312
0.375
0.438
0.500
0.562
0.625
0.750
0.875
1.000
1.250
1.500
MAX.
0.003
0.004
0.006
0.008
0.008
0.009
0.014
0.015
0.016
0.016
0.022
0.024
0.030
0.032
0.044
0.047
0.050
0.053
0.055
0.070
0.076
0.081
0.092
0.104
3. For plated wrenches and bits, all dimensions are before plating.
Applicable Standards and Specifications
ASME/ANSI B18.3 and GGG-K-275 Amend. 1 (Reference)