Arrowmax AM-490039-LE Arm Reamer 2.5 X 70mm Limited Edition  [AM-490039-LE]

Arm reamer for RC control arms

The Arrowmax AM-490039-LE Arm Reamer 2.5 X 70mm Limited Edition is an RC-scale setup tool intended for preparing and refining arm pivot holes on model suspension arms and linkage components.

Use this reamer to open, deburr, or slightly enlarge 2.5mm arm pivot holes so plastic or composite arms accept metal inserts, bearings, or hinge pins with improved fit. The 70mm length gives reach into tight chassis layouts while keeping the shaft stable during hand operation.

Operation is manual: secure the arm or part in a bench vise or suitable fixture, align the reamer with the existing hole, and rotate with steady pressure to remove material. Avoid aggressive forcing; check fit frequently to reach the desired clearance.

This tool fits into a setup kit for hobbyists who need controlled reaming of RC arm pivot holes as part of alignment and tuning work; handle with care and inspect parts as you progress.