Draper 22 piece screwdriver bit and holder set draper 28339 comprehensive set with belt clip set is supplied with 20 hardened and tempered 8660v steel 1 4 bits x 25mm long display packed br br b b br br pz type products are compatible with pozidriv 174 supadriv 174 fixing systems br draper tx star products are compatible with 134 torx fixing systems br pozidriv 174 supadriv 174 are registered trademarks of trifast plc br 134 torx is the registered trademark of camc