The wera bit check 10 universal 3 sb allround torsion bit set with rapidaptor is designed for compact and organised tool storage torsion tz bits are designed to prevent premature wear for improved service life extra tough bits are suited to hard metal jointing threaded fasteners and general use the rapidaptor universal bit 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 screwdr