Original Makita part HY00000546 — Front bumper (nose bumper) for the AT638A narrow‑crown pneumatic stapler.

What it is and what it does:

- A direct‑replacement front bumper that restores the tool’s nose protection and helps prevent marring of workpieces and premature wear to the stapler’s front assembly.

- Designed to match the original mounting points on the AT638A housing for a straightforward, direct fit — no body modification required.

Compatibility:

- Specifically referenced for the Makita AT638A 1/4" (6.35 mm) narrow‑crown, 18‑gauge stapler. Confirm your model number against HY00000546 before installation.

Notes for the repair:

- Supplied as the single front bumper component (genuine Makita). It replaces a worn, torn or missing bumper to restore proper contact/clearance and protect both tool and work surface.

Use the Makita part number HY00000546 when matching the replacement to ensure you get the correct original Makita front bumper for your AT638A.