Description
Pro-tech Allen Key Set -Ball Point type are made of Premium chrome vanadium steel with a greater density at the points of the highest pressure, and such dimensioning and manufacture only increase their extreme power and durability. Holds screw tight, FIRST TIME – EVERY TIME. Does not weaken tool or encourage stripping. Allows for maximum torque without distortion. Rust proof and non-magnetic. The location of the button does not interfere with tool rotation.
- Standard : DIN911
- Hardness : HRC 48-53
- Material : Chrome Vanadium Steel
- Surface finish: blacken to standard DIN 50938.
- Entirely hardened and tempered.
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