Williams 15 pc Metric SUPERCOMBOÂ® Black Combination Wrench Set
Set Includes Sizes 7mm to 21mm
• 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