LEXIVON LX-145 XZN Triple Square Bit Socket Set, M4–M18, 10-Piece

Made from drop-forged, heat-treated S2 alloy steel, the XZN bits in the LEXIVON LX-145 set are designed for triple-square fasteners found on European vehicles. Their range from M4 to M18 covers a variety of automotive tasks in one organized kit.

Ten sizes are divided across 1/4-inch, 3/8-inch and 1/2-inch drives, making it easier to match the socket to the fastener and your manual torque tool. Chamfered edges are designed to help the bits seat smoothly.

A storage case stamped with the bit sizes helps keep the set arranged and makes it simpler to identify the size you need while working. The included sizes also feature tamper-proof options for selected applications.

Technical details

• Type: XZN triple-square spline bit socket set
• Number of pieces: 10
• Bit sizes: M4, M5, M6, M8, M9, M10, M12, M14, M16 and M18
• Drive sizes: 1/4-inch for M4, M5 and M6, 3/8-inch for M8, M9, M10, M12 and M14, 1/2-inch for M16 and M18
• Tamper-proof sizes: M14, M16 and M18
• Bit material: Drop-forged, heat-treated S2 alloy steel
• Socket material: Heat-treated chrome vanadium steel
• Finish: Zinc phosphate on the bits, polished, chrome-plated finish on the sockets
• Included: XZN bit sockets and a size-stamped storage and carry case

The graduated drive sizes give you options for different fasteners and tool setups, while the marked case helps return each socket to its place between jobs. Buyers frequently praise the set’s fit, storage and build, and describe it as useful for work on Audi, Volkswagen and other European vehicles. These are customer impressions, the practical choice still depends on matching the bit to the fastener at hand.

Compatibility

This set is designed for XZN or triple-square fasteners on European automotive applications. It is suited to work on vehicles such as BMW, Mercedes, Volkswagen, Audi and Porsche, as well as other European vehicles. Common applications for this fastener style include cylinder head bolts, retaining bolts, drivetrain components, door hardware and disc brake calipers.

Unlike a general-purpose bit set intended for many fastener types, the LX-145 focuses on the XZN profile. That makes it a targeted choice when a repair calls for triple-square bits, rather than a substitute for sockets or bits designed for other fastener shapes. Match the bit size and drive to the specific fastener and tool before beginning the job.

Usage tips

Identify the fastener’s XZN profile and select its matching size from the stamped case. Seat the bit squarely in the fastener before turning, particularly when working on components such as brake calipers or drivetrain hardware. Use with a manual torque tool for automotive work, as described for the set, and follow the vehicle manufacturer’s procedure and torque specification for the repair.

After use, return the sockets to their marked positions. Keeping the sizes together makes it easier to locate the right bit for the next job, whether you are preparing for a planned repair or organizing an automotive tool kit for regular maintenance.

Practical questions

What sizes are included? The set contains M4, M5, M6, M8, M9, M10, M12, M14, M16 and M18 XZN bit sockets. They are grouped across 1/4-inch, 3/8-inch and 1/2-inch drives, with M14, M16 and M18 identified as tamper-proof sizes.

Which vehicles is the set intended for? It is designed for European automotive applications, including BMW, Mercedes, Volkswagen, Audi and Porsche. The specific fastener must use the XZN triple-square profile.

Does it come with a case? Yes. A storage and carry case with stamped bit sizes is included to help organize and identify the sockets.

Buying verdict

The LEXIVON LX-145 is a focused addition to an automotive tool kit when the work calls for XZN triple-square fasteners. Its ten sizes, three drive formats, selected tamper-proof sockets and labelled case bring the key details together for DIYers and professionals handling European vehicle repairs with a manual torque tool.