General description Neilsen 39pc Impact Screwdriver Bit Set is designed for both professional and DIY use. This comprehensive set includes a variety of bits that work seamlessly with all drill/drivers, quick-change connectors, and impact drivers. Technical specifications Material: All Bits=S2 Magnetic Nut Setter: CRV Hex to Square: CRV Finish: Black oxide finish resists corrosion Bit Holder: Torsion I-beam magnetic bit holder is 2X stronger than standard bit holders Content: 24pcs S2 DRIVE BITS Sizes: 2pcs x SL 6-8, 3pcs x SL 8-10, 4pcs x SL 5, 2pcs x SL 4, 1pc x SL3, 3pcs x SL2, 5pcs x S2, 3pcs x S3, 1pc x S0 4pcs Hex Shank Nut Drivers: 6, 8, 10, 12MM 8pcs S2 Driver Bits 2": 4pcs x S2, 1pc x S1, 1pc x PZ1, 1pc x T25, 1pc x PH3 1pc Socket Adapter: 1/4" HEX to 1/4" SQX2" 1pc Socket Adapter: 1/4" HEX to 3/8" SQX2" 1pc Magnetic Bit Holder Usage This bit set is ideal for various applications, providing strong fastener retention and durability. The extra-strength magnetic nut drivers