【10PCS Spline Socket Set】: This RIMKOLO XZN triple square spline bit socket set includes 3 types for 1/4" drive (M4, M5, M6), 5 types for 3/8" drive (M8, M9, M10, M12, M14), and 2 type for 1/2" drive (M16, M18). Each square socket has detent pin hole that allows user to choose whether to engage pin. 【Superior Quality】: Crafted from S2 steel and CR-V, this triple square socket set guarantees exceptional durability and strength. And the surface with blackened manganese phosphate finish, effectively reducing the risk of wear-outs, corrosion and rust. Exceeds the ASIN standard. 【Precision Torque Power】: Precisely and automatically machined bit tips to ensure accurate size, chamfered bit ends insert smoothly into fasteners and protect both tamper proof bits and fasteners from damaged edges. 【Convenient To Use】: Enclosed in a sturdy plastic case, this spline tip bit socket set features dedicated slots for each square drive sockets, ensuring tidy arrangement and easy transportation. High-contrast size marking is permanently laser etched and easy to read and use. 【Versatile Application】: Our triple square torque socket set includes all the essential sizes, making it suitable for various tasks such as working on bikes, automobiles, appliances, lawn equipment, machinery, and more, with the aid of manual torque tools. RIMKOLO 10-Piece XZN Triple Square Spline Bit Socket Set
A must-have for both DIY enthusiasts and professionals working with European vehicles such as BMW, Mercedes, VW, Audi, Porsche, and more.

Engineered for Superior Performance: Our triple square spline bit socket set is meticulously crafted and designed using premium materials to provide increased torque and unmatched hardness. The XZN Bits are drop-forged and heat-treated with S2 alloy steel known for its exceptional hardness (60-62 HRC). The drive sockets are made of heat-treated Chrome Vanadium Steel, further enhancing torque power.
Built to Last: The tamper proof triple square bit socket set features a zinc phosphate finish, effectively reducing wear-outs and ensuring longevity, even through multiple usages. The drive sockets are fully polished with a chrome-plated mirror finish, providing complete resistance against rust and corrosion.
Precision and Protection: Each bit is precisely crafted using CNC (Computer Numerical Control) machines, with chamfered edges that ensure a smooth fit while protecting both the bit ends and the fasteners.
Premium Storage & Carry Case: The set comes with a convenient storage and carry case, featuring stamped bit sizes for easy recognition and organization.

What's Included:
10-Piece XZN Triple Square Spline Bit Socket Set:
1/4" Drive: M4, M5, M6
3/8" Drive: M8, M9, M10, M12, M14
1/2" Drive: M16, M18