Catalog number: ZL4MM Features: ● Bright Guard [TM-above] is a plating that is more lustrous than chrome. ● The new alloy protenium steel [TM-below] has increased hardness by more than 20% compared to conventional products. Applications: ● For tightening and loosening hexagon socket bolts. Specifications: ● Opposite side size (mm): 4.0 ● Neck size (mm): 22 ● Total length (mm): 142 ● Color: Plating ● Hardness: HRC57-61 ● Opposite side (mm): 4.0 Material/Finish: ● Protenium special alloy steel [R-above] (Bondus, custom steel material) ● Surface treatment: Bright Guard (TM) processing (plating) Caution: ● To use tools safely, always wear protective glasses when working. ● Do not work with pipes, box wrenches, etc.
