The screwdriving bits are made from premium S2 steel for long tool life Use for driving common or mild steel screws or case hardened screws Set includes Insert Bits: (3)2 Drywall, 1, (6)2, 3 Phillips, 1, 2, 3 Pozi, 6-10, 8-10, 10-12 Slotted, 1, (4)2, 3 Square, T-10, T-15, T-20, T-25, T-27, T-30 Star-Drive, 1/8, 5/32 and 3/16 Hex. Power Bits: (2)2 Phillips, (2)2 Square, 8-10 Slotted, and T-25 Star-Drive plus a magnetic bit holder and screw guide
