Arm Reamer Tip for 4.0mm Suspension Arms - Arrowmax AM-492023 Tungsten Steel Tip Only  [AM-492023]

Precision 4.0mm reamer tip for suspension arms

This Arrowmax AM-492023 replacement tip is an RC-scale arm reamer cutting element made to finish or correct 4.0mm arm holes in plastic and composite suspension arms. The tungsten steel cutting tip is supplied on its own and restores roundness while removing burrs that can prevent correct ball stud or turnbuckle seating during setup.

Fit the tip to a suitable handle or holder built for RC setup tools and operate at low speed with light feed pressure to avoid overheating the carbide edge. The 4.0mm profile targets the arm pivot area where consistent hole geometry improves suspension movement and yields repeatable setup measurements.

Simple care keeps the tip reliable: clear debris after use, avoid side-loading that can chip the edge, and inspect for wear before each session. This tool is intended only for model components and not for full-size vehicle use.