10PCS Triple Square Spline Bit Socket Set M4–M18 – Tamper-Resistant XZN Driver Bits for Auto Repair

Stop rounding bolts and struggling with stubborn fasteners—get the exact fit that makes repairs faster and safer. This professional triple square spline bit set is designed for high-torque automotive work, delivering a secure grip on tamper-resistant bolts found in many European and modern vehicles. Built for mechanics, DIY car owners, and workshop technicians, it covers M4–M18 sizes for versatile applications. The precision-cut XZN tips help reduce slipping and stripping, even under heavy load. Ideal for anyone searching for a durable triple square bit socket set, XZN spline socket, or tamper proof bit set for reliable auto repairs.

Key Features

• M4–M18 size range (10 pcs) covers common triple square fasteners for automotive jobs

• High-torque, anti-slip fit helps prevent bolt rounding and improves turning power

• Tamper-resistant spline design ideal for specialized bolts on vehicles and machinery

• Durable construction built to handle repeated use under high pressure

Why Choose Our 10PCS Triple Square Spline Bit Socket Set M4–M18

Generic bits often strip, slip, or crack under torque—especially on tight triple square bolts. This precision XZN spline set provides stronger engagement and better durability, giving you safer removal and cleaner installs. More accuracy, more torque control, less damage.

Perfect For

• Auto repair and maintenance (brakes, driveline, engine work, suspension bolts)

• European vehicle owners & mechanics needing triple square/XZN compatibility

• DIY mechanics upgrading tool kits for specialty fasteners

• Workshops & service centers handling frequent high-torque jobs

Get the right fit for stubborn triple square bolts and make every repair smoother—order now and upgrade your tool kit today.