General description This Teng Tools Impact Driver Set includes a 1/2in Drive Impact Driver, a Coupler Adaptor, a 5/16in Hex to 3/8in Male Hex Adaptor, and 17 bits. It is supplied in a case with a removable, hinged, click lock lid, making it suitable for use as an individual set or as part of Teng Tools tool storage systems. Technical specifications Dimensions: 265 x 142 x 50 mm Contents: 1 x 1/2in Drive Reversible Impact Driver 1 x 1/2in Drive Coupler Adaptor 1 x 5/16in Hex to 3/8in Male Adaptor 4 x 5/16in Drive Slotted 36mm Hex Bits: 6mm, 8mm, 10mm, and 12mm 4 x 5/16in Drive Phillips Bits: PH1, PH2, PH3, and PH4 4 x 5/16in Drive Hex Bits: 4mm, 5mm, 6mm, and 8mm 5 x 5/16in Drive TORX Bits: TX30, TX40, TX45, TX50, and TX55 Other information MPN: TC31 EAN: 5020385020030