The Expert Metric Short Arm Hexagon Keys are manufactured from chrome vanadium steel for increased torque strength that exceeds current standards. They have a black zinc plated finish. Micro chamfered angles on the end faces provide increased grip in the screw head. Conform to ISO 2936 - DIN 911.Select Option 1.5mm10.0mm11.0mm12.0mm13.0mm14.0mm17.0mm19.0mm2.0mm2.5mm3.0mm5.0mm6.0mm7.0mm8.0mm9.0mm Add to Basket Quantity