This listing is for new - Metric Short Arm Hex Keys / Allen Wrenches.

Black Alloy Steel - Made from heat treated 6150 alloy steel. Best for applications where extreme strength and hardness are required. Perfect for Class 12.9 cap screws!!

Min. Tensile Strength (MPa): 1200 !!

NOTE : For those ordering the 9 piece set, it includes one the following Hex Keys:

M0.9, M1.3, M1.5, M2, M2.5, M3, M4, M5, M6