Durable S2 Steel Construction: Each spline bit is made from hardened S2 alloy steel for strength and durability. It resists wear and deformation, ensuring stable performance for repeated tightening and loosening of bolts Precision 12 Point Design: The triple square socket set delivers an accurate fit with 12 contact points. This structure improves torque transfer and prevents damage or slipping when working with tough fasteners Magnetic Hex Shank: The 1/4 inch quick-change magnetic shank allows secure attachment to power tools, screwdrivers, and drills. It holds screws firmly in place and simplifies operation in confined spaces Versatile Bit Selection: Includes seven sizes M4, M5, M6, M7, M8, M10, and M12, meeting a wide range of repair and assembly needs. Ideal for removing and tightening bolts in cars, motorcycles, and machinery Practical for Workshops and Repairs: Compact and portable bit set suitable for garages, home workshops, and professional mechanics. Designed for efficient performance in automotive and general maintenance tasks, Weight: 0.2425084882 Pounds, Manufacturer: fKiZanthene