[Industrial Quality] Magnetic Hex Bits are made of high-quality heat-treated solid S2 steel, durable enough for industrial use. They have enough toughness and twisting force to keep the tips from breaking and fraying. [Magnetic Suction Head] With magnetism, it can firmly adsorb the screws, preventing the screws from falling and losing. The magnetic tip enhances the connection to the screw to ensure a secure grip, it minimizes screw wear and improves work efficiency. [High Precision] Every edge of this hex bit set can precisely lock the screw without damaging the screw or screwdriver bit. 1 set of 8 specifications to meet your needs for screwing various sizes of hexagon socket screws! [Wide Range Of Use] Suitable for electric screwdrivers, manual screwdrivers, electric drills, and air drills. Ideal for working on motorcycles, bicycles, and furniture for easy furniture and equipment repair and disassembly. SPECIFICATION: Bit Size: H1.5 (1.5mm), H2 (2.0mm), H2.5 (2.5mm), H3 (3.0mm), H4 (4.0mm), H5 (5.0mm), H6 (6.0mm), H8 (8.0mm) Length: 100mm/3.93 Shank: 6.35mm/0.25 Material: S2 alloy steel Weight: 157g Package Included: 1 x H1.5 Hex Screwdriver Bit 1 x H2 Hex Screwdriver Bit 1 x H2.5 Hex Screwdriver Bit 1 x H3 Hex Screwdriver Bit 1 x H4 Hex Screwdriver Bit 1 x H5 Hex Screwdriver Bit 1 x H6 Hex Screwdriver Bit 1 x H8 Hex Screwdriver Bit