Warranty Included 25mm 1/4" bits manufactured from chrome vanadium steel, hardened and tempered with a shot blast finish. Supplied with a 1/4' soft grip driver. Supplied in a heavy duty storage case with plastic inlay to hold bits securely. Display packed.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. Includes 1 x Magnetic soft grip driver3 x Tri wing: 1, 2, 34 x Spanner: 4, 6, 8, 105 x Spline: M4, M5, M6, M8, M104 x Square: S0, S1, S2, S36 x Metric security hex: 2, 2.5, 3, 4, 5, 6mm6 x Imperial security hex: 5/32, 9/64, 1/8, 7/64, 3/32, 5/64"7 x Draper .