TiN Coating Screwdriver Bits PH2
Size: SS1/4*65*PH2 (other size available)
Coating: TiN function coating, 4UM thickness, 2300HV hardness
PS: now is lot ornament TiN coating on the market, is useless for the use life.
TiN coating double ended screwdriver bits PH2 packing:
