
75mm Impact Torsion Driver Bits Heavy Duty Hight Quality 5PCS Factory Supply. Torsion Zone Technology: Specially engineered torsion zone absorbs impact force, reducing breakage and extending service life. Premium S2 Steel: Heat-treated S2 alloy steel offers superior hardness, toughness, and resistance to wear and cracking. Precision Fit Tip: CNC-machined tips ensure tight fit, improving efficiency and preventing screw damage. Anti-Rust Finish: Black phosphate surface treatment provides anti-rust and anti-reflection properties. Full Customization: Supports OEM logo, color, length, and packaging customization for diverse needs. Multi-Size Options: Available in 25mm to 150mm lengths with PH, PZ, Torx, Hex, SL, and SQ types. Heavy Duty Design: Built for high-torque applications, preventing cam-out, wobbling, and head stripping. ISO9001 Certified: Manufactured under ISO9001:2015 system with 100% finished product inspection.