Williams 1218BSC 9/16 Inch SAE Combination Wrench 12 Point Black

Supercombo Combination Wrench With Supercomb Open End And Supertorque Box Opening Meets Or Exceeds Aerospace Specification AS 954 For 12 Point Fasteners (As Defined By AS 870) To Provide Accurate Torque/Tension Relationship For Precision Application. 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 Box And Open End Openings Are Identical