Materials: S2 alloy metallic HRC60°±2Type of shank: 6 / 0 inch hexOverall Length:L50mm L75mm L100mmPozidriv Bit : PZ1 PZ2 PZ3Features:High precision, high hardness and nice workmanship are magnetic that may be firmly constant on screwdrivers Included:1 x Screwdriver Bit PZ