Wera Bit-Safe 43 Universal 1 Comprehensive Standard Bits & Holder Set in Pouch for drill/drivers with Stainless holder is designed for compact & organized tool storage. Included are 25mm & 50mm direct drive Torsion (TZ) bits. Utilising a unique combination of special material, hardening & precision manufacture, TORSION bits are designed to prevent premature wear for enhanced service life. EXTRA-TOUGH (Z) bits are suited to hard metal jointing, threaded fasteners & general use including timbers. With slim Stainless Universal bit holder with ring retention for insert & power bits. Wera Bit-Checks feature a compact design to safely store bits in a case that provides fast & easy tool selection. So slim it can fit into your pocket. Sorted by drive & size, tools are easy to locate & return to proper position, making missing products easy to identify.