The MAYHEW HEAVY DUTY TWISTED HEX KEY SET is made of superior quality S2 Tool Steel with a unique twisted design that increases torque capacity.
These hex keys have longer shafts for additional leverage and exceed ANSI standards for quality and durability.
The set is color-coated for corrosion resistance and has manganese-phosphate contact areas to resist wear, with both fractional (45052) and metric (45053) sizes available.