This Teng Tools Impact Driver Set contains a 12in Drive Impact Driver a Coupler Adaptor 516in Hex to 38in Male Hex Adaptor and 17 Bits Supplied in a case with a removable hinged click lock lid for use as an individual set or as part of Teng Tools tool storage systems Dimensions 265 x 142 x 50mm Contents 1 x 12in Drive Reversible Impact Driver 1 x 12in Drive Coupler Adaptor 1 x 516in Hex to 38in Male Adaptor 4 x 516in Drive Slotted 36mm Hex Bits 6mm 8mm 10mm and 12mm 4 x 516in Drive Phillips Bits PH1 PH2 PH3 and PH4 4 x 516in Drive Hex Bits 4mm 5mm 6mm and 8mm 5 x 516in Drive TORX Bits TX30 TX40 TX45 TX50 and TX55