Expert Quality, screwdrivers with hardened SVCM satin chrome plated blades and sand blasted tips. The handle is manufactured from impact-resistant heavy-duty 'soft grip' polypropylene that's colour coded for easy recognition. Some blades have hexagon bolsters which enable extra power to be obtained by use of a spanner. PZ TYPE products are compatible with *Pozidriv® ;/Supadriv® ; fixing systems +with hexagon bolster*Pozidriv® ;/Supadriv® ; are registered trademarks of Trifast Plc.