Catalog number: ZL3.5 Features: ●The material is made of hard protenium alloy steel. ●Bright Guard processing is more than twice as corrosion resistant as general plating. Applications: ●For tightening and loosening hexagon socket bolts. Specifications: ●Face size (mm): 3.5 ●Neck size (mm): 21 ●Total length (mm): 133 ●Face size (inch): 3.5mm (135mm) ●Hardness: HRC57-61 ●Bright Guard plating ●Hardness: HRC57-61 Material/Finish: ●Protenium(R) alloy steel (Bondus special steel material) ●Surface treatment: Bright Guard(TM) processing (plating) Caution: ●To use the tool safely, always wear protective glasses when working. ●Do not work with pipes or wrenches.
