The Draper 20 Piece General Purpose Screwdriver Set features chrome vanadium steel blades hardened, tempered with satin chrome plated finish & sand blasted tips. The polymer vulcanized soft grip rubber handles are colour coded for easy recognition. Packed in blow mould case with see-through lid. PZ TYPE products are compatible with * Pozidriv/ Supadriv fixing systems. Draper TX-STAR products are compatible with † Torx fixing systems. * Pozidriv/ Supadriv are registered trademarks of Trifast Plc. † Torx is the registered trademark of Acument Intellectual Properties LLC.