3 head types: PH0 for M1.6-M2 screws, PH1 for M2.5-for M3 screws, PH2 for M3.5-M5 screws. 6mm Round Shank, strong magnetic, special for 802/6C electric batch, complete specifications, high hardness. for Precision batch head, high torque resistance, not easy to break.
eBay