Williams 15 pc Metric SUPERCOMBO® Black Combination Wrench Set

• 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

• 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