Product Specification:
• Include this Allen key set in your tool box and ensure that you do not have to struggle to fasten a deeply seated screw or loosen a tightly wound one.
Features & Benefits :
• 1.ANSI B18.3.2M-1979 ,GGG-K-275D S2 steel
• 2.HRC 60 +/- 2, 20% higher torque vs Cr-V
• 3.Fine satin finished