The Wera Bit-Safe 61 BiTorsion 1 is a comprehensive set of Torsion bits and a Rapidaptor holder set supplied in a pouch. It is designed for users on the move needing a broad selection of drive profiles with multiples of the same bit. Utilising a unique combination of special material, hardening and precision manufacture, Bi-Torsion bits are designed to prevent premature wear and dramatically extend service life. Their patented Torsion zone absorbs peak stress loads that normally destroy bits. Diamond Coated (BDC) bits ensure safe working, especially driving screws into delicate materials or high-quality surfaces, preventing slip. Additionally, where screws are driven into resistant materials such as hard woods, concrete screws and ABS plastics Diamond Coated bits \'bite\' into the fastener ensuring a secure fit and reducing cam-out effect. This extends the life of the tool and ensures screws are fully driven home. Extra-Tough (BTZ) bits are suited to hard, Metal Jointing, threaded fasteners and general use. Gold Extra Hard (BTH) bits are are designed for driving screws into normal construction timbers and materials. The holder with quick-release chuck offers press-in auto-lock and rapid one-handed bit changes for insert and power bits. The holder spin sleeve allows the steadying of the screwdriving. Wera Bit-Safes feature a compact design to safely store bits and bit holders in a handy structured fabric case; the tools are easily accessed. Drive and size are colour coded for easy selection of the right bit. This 61 piece set includes the following:1 x 1/4in x 50mm Rapidaptor Universal bit holder.60 BiTorsion 25mm bits:4 x BDC Phillips: PH1, PH2 (x2), PH3.11 x BTZ Phillips: PH1 (x2), PH2 (x8), PH3x25.4 x BDC Pozidriv: PZ1, PZ2 (x2), PZ3.11 x BTH Pozidriv: PZ1 (x2), PZ2 (x8), PZ3.16 x BTZ TORX®: TX10 (x3), TX15 (x2), TX20 (x4), TX25 (x4), TX30 (x2), TX40.3 x BDC Slotted: 0.8x5.5mm, 1.0x5.5mm, 1.2x6.5mm.11 x Hex-Plus: 2.5mm (x3), 3.0mm (x3), 4.0mm (x3), 5.0mm (x2).