Wera bit check 7 universal 3 general purpose bit set for drilldrivers with stainless holder is designed for compact and organized tool storage extra tough z bits are suited to hard metal jointing threaded fasteners and general usewith slim stainless universal bit holder with ring retention for insert and power bits wera bit checks feature a compact design to safely store bits in a case that provides fast and easy tool selectionso slim it can fit into your pocket sorted by drive and siz