CARBYNE 9-Piece Triple Square Impact Socket Set, XZN Spline Bit, CrMo Steel, Manganese Phosphate Coating, Metric M4 to M18, 1/4 in. 3/8 in. and 1/2 in. Drive

BUILT FOR IMPACT DRIVERS: CrMo (chromium-molybdenum) steel construction absorbs repeated high-torque impacts from pneumatic and cordless impact wrenches without cracking or shattering. Designed for professional shops, fleet maintenance, and heavy-duty European vehicle service. | COMPLETE XZN COVERAGE: Includes 3 Pcs. 1/4 in. Drive (M4, M5, M6), 3 Pcs. 3/8 in. Drive (M8, M10, M12), and 3 Pcs. 1/2 in. Drive (M14, M16, M18). Nine metric sizes across three drive sizes cover the most critical triple square fastener applications. | MANGANESE PHOSPHATE COATING: Industrial Manganese Phosphate finish provides a matte black surface that actively prevents corrosion and reduces friction during high-speed impact use. | EUROPEAN VEHICLE SPECIALIST: XZN triple square spline fasteners are standard on Volkswagen / VW, Audi, BMW, Mercedes-Benz, and Porsche for cylinder head bolts, brake caliper bolts, axle bolts, and transmission components requiring precise 12-point engagement. | EASY TO USE: Precision Chamfered Bit Ends Insert Easily into Fasteners. Sizes are Precision Laser Bit Sockets for Faster Recognition. | 100% Risk-Free: Tools Meet & Exceed ANSI (American National Standard Institute) Standards and Are Covered by Our Lifetime Warranty for Your Complete Peace of Mind.