4 Way Wheel Nut Cross Wrench Socket Spanner RC Model Car - 4mm, 5.5mm, 7mm, 8mm

The 4mm, 5.5mm, 7mm, and 8mm hex sizes cover the most common wheel nut dimensions used on 1/8, 1/10, and 1/12 scale RC cars from brands such as Traxxas, Arrma, Tamiya, and HPI. Always measure your existing wheel nuts with a caliper before ordering to confirm the correct size.

Check your RC car's manual or measure the flat-to-flat width of the wheel nut hex with a digital caliper. Most 1/10 electric touring cars use 5.5mm or 7mm; many 1/8 buggies and truggies use 8mm; smaller 1/12 and mini-scale cars often use 4mm.

Yes. The fixed hex socket design works in both directions — clockwise to tighten, counter-clockwise to loosen. There is no ratchet mechanism, so full rotation of the wrench is required for each turn.

When used correctly — ensuring the socket is fully seated on the nut before applying torque — the risk of rounding is minimal. Avoid using the wrench at an angle or applying excessive force beyond hand-tight, as this applies to any socket tool regardless of material.

Yes. The wrench is compatible with any RC car platform that uses standard hex wheel nuts in the listed sizes, regardless of whether the car is electric or nitro powered. The wheel nut size is determined by the hub design, not the drivetrain type.

A spare wrench in your pit bag means you are never stranded if one is misplaced during a race day. The 5-piece pack is cost-effective for club teams or multi-car owners who want a dedicated wrench at each workstation without sharing tools between drivers.

A cross wrench cannot recover a significantly stripped nut. If a nut shows visible rounding, use a nut extractor tool first. This wrench is designed for use on undamaged hex nuts in good condition.