General description Silverline Ratchet Screwdriver Bit & Socket Set is a comprehensive 45-piece toolset designed for versatility and ease of use. It features a chrome vanadium steel construction and a soft-grip ratchet handle that allows for forward, reverse, and locked positions, making it suitable for various tasks. Technical specifications Material: Chrome vanadium steel Bit holder length: 60mm Hex size: 6.35mm (1/4") Socket sizes: 5mm to 11mm Usage Includes 25mm bits: slotted 1 x 5mm, 3 x 6mm, 1 x 7mm; Phillips 1 x PH1, 5 x PH2, 1 x PH3; Pozidriv: 1 x PZ1, 2 x PZ2, 1 x PZ3; Trx: 1 x T10, 2 x T15, 1 x T20; Security: 1 x 1, 2 x 3, 1 x 3. Includes 50mm bits: slotted 1 x 5mm, 2 x 6mm, 1 x 7mm; Phillips 1 x PH1, 2 x PH2, 1 x PH3; Security: 1 x 1, 1 x 2, 1 x 3.