hex head screwdriver bits 1. Material: carbon steel 2. Bit style: Slot, Fillips, Torx, Pozi, Hex, and Square hex head screwdriver bits l Summarize/Feature1) Material made of Carbon steel or Cr-V or M2 tool steel, heat treated2) Bit style: Slot, Fillips, Torx, Pozi, Hex, and Square3) Surface finishing: Sand blaster, Golden finished, and nickel plated4) Shanks: hex, quick release, and roundl Model ...