Arrowmax AM-410140-BG 4.0 x 120mm RC Allen Key  [AM-410140-BG]

RC Hex Wrench Overview

The Arrowmax AM-410140-BG Allen Wrench is a 4.0 x 120mm hex key made to engage 4.0mm hex screws used on scale model chassis and parts. The 120mm shaft offers additional reach for recessed bolts while the black golden finish denotes appearance rather than specific metallurgy.

Intended for assembly, tuning and quick field adjustments, the tool assists with tasks such as alignment, shock tuning and servo mounting. A straight shaft and consistent tip help maintain control when performing repeated fastening operations.

Because the manufacturer does not provide further details about construction or surface treatment beyond the finish, check the tip before precision jobs and replace the tool if wear becomes apparent to avoid damaging screw heads.

This 4.0 x 120mm Allen key is suitable for general RC assembly and setup; store it dry and inspect the tip regularly.