Wrench Size | Hexagon Width Across Flats | Hexagon Width Across Corners | Length of Short Arm | Length of Long Arm (Short Series) | Radius of Bend | Chamfer | Torsional Shear - Ave. | Torque Rating | ||||
Max | Min | Max | Min | Max | Min | Max | Min | Min | Max | (Inch-Pounds) | (Inch Pounds) | |
1/8 (0.125) | 0.1250 | 0.1235 | 0.1418 | 0.1390 | 0.844 | 0.656 | 2.344 | 2.156 | 0.125 | 0.015 | 98.0 | 77.90 |
SEE NOTES 1 | 2 | 1 | 7 | 8 |
NOTES: |
(1) Ends | (5) Plating |
(2) Rounding of Corner | (6) Product Applicability |
(3) Material | (7) Designation |
(4) For sizes above 1" |
Reprinted from ASME/ANSI B18.3 by permission of The American Society of Mechanical Engineers. All rights reserved. For a full copy of the standards, contact the ASME at http://www.asme.org/codes/.