Williams 1199BBL Combination Wrench 12 Point, 3-3/8", Black

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.
• 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 Satin with Standard Open and Box Ends.