General description Sealey Siegen Hammer-Thru Screwdriver, Bit & Nut Driver Set includes a selection of popular sized hammer-thru screwdrivers, nut drivers, bit driver, and bits. This comprehensive 61-piece set is designed for both professional and DIY use, featuring durable construction and user-friendly design. Technical specifications Model No.: S01153 Contents: Screwdrivers, Bits, Nut Drivers Screwdrivers: Slotted - 6 x 38, 3 x 75, 4 x 100, 5 x 100, 6 x 100, 6 x 150, 8 x 200mm; Phillips - #0 x 75, #2 x 38, #1 x 100, #2 x 100, #3 x 150mm; Pozi - #0 x 75, #1 x 100, #2 x 100, #3 x 150mm; VDE - Slotted - 3 x 75mm, Phillips - #0 x 75, #1 x 80, #2 x 100mm; TRX-Star* - T20 x 100, T25 x 100, T27 x 100, T30 x 125, T40 x 125mm Bits: TRX-Star* - T7, T8, T9, T10, T15; Slotted - 4, 6mm; Phillips - #1, #2 (x2), #3; Pozi - #1, #2 (x2), #3; Hex - 3, 4, 5, 6, 7, 8mm; Square - 1, 2, 3mm Nut Drivers: Metric - 6, 7, 8, 10, 12mm; Imperial - 3/16", 1/4", 5/16", 3/8", 7/16" Material: Chrome Vanadium