Arrowmax am-429378 Ball Driver Hex Wrench .078 (5/64) X 110mm Limited Edition  [am-429378]

Precision Ball Driver Hex Wrench

This Arrowmax am-429378 ball driver hex wrench is an RC-scale hand tool designed to reach and engage small hex screws commonly found across model chassis and components. The .078 (5/64) tip and 110mm overall length come from the product designation and define its intended use for tight or recessed fasteners on RC models.

As a ball driver style hex wrench, the tip profile allows slight angular entry when accessing screws that are not perfectly aligned, which helps when adjusting servo linkages, motor pinion gears, or other assembly points where access is restricted. The 110mm shaft provides reach without excessive leverage, keeping control during delicate tuning tasks.

Use this tool for routine assembly, component swaps, and on-track tuning sessions where consistent engagement with small hex screws matters. It is intended solely for RC-scale accessories and model maintenance.

Short, focused and built around the nominal size in the name, this tool suits model builders who need a dedicated .078 (5/64) hex driver for precise RC work.