The Wera Kraftform Kompakt 20 Bit Holding Screwdriver is suitable for 1/4in hexagon socket insert bits and Wera Series 1 and 4. The bayonet attachment has Rapidaptor rapid-in, rapid-out, rapid-spin, chuck-all and single-hand technology making this a useful screwdriver. The Kraftform multi component handle has a non-roll feature and integrated magazine for 6 25mm length bits. All supplied in a handy, compact pouch. Contains: 1 x Kraftform Kompakt 20 Screwdriver Handle. 1 x 100mm 889/4 R Rapidaptor Universal Bit Holder.2 x 25mm Phillips Bits: PH1, PH2.2 x 25mm Pozidriv Bits: PZ1, PZ2.2 x 25mm Slotted Bits: 1.0 x 5.5mm, 1.2 x 6.0mm.