Williams® Combination Wrench, series: Supercombo® Supertorque®, Metric, 21 mm Wrench Opening, 12 Points, 11-25/32 in OAL, 1-3/4 in Open End Width, 3/8 in Open End Thickness, 1-7/32 in Box End Width, 17/32 in Box End Thickness, High Polished Chrome.
Features
- Supercombo® open end has specially designed grooves that direct wrench force away from fastener corners
- Supertorque® box opening design allows application of higher torque without rounding or deforming hex fastener points
- No contact is made at the corners, instead wrenching forces are placed on the flat surfaces behind the points
- May be used on all common hex (6-point) fasteners with considerable advantage over conventional box end wrenches to increase both hand tool flexibility and economy
