DeWalt N446577 — genuine DeWalt bumper kit designed to restore the impact‑cushioning inside compatible DeWalt cordless nailers. This service kit replaces the worn elastomer bumpers that absorb the driver’s blow, reducing recoil, protecting the driver and nose components, and restoring consistent nail depth and smooth cycling. The parts are made from a durable, wear‑resistant elastomer engineered for regular servicing and long service life on site.

Fits (examples): DeWalt DCN650 (15‑gauge angled finish), DCN660 / DCN660D1 (16‑gauge finish), DCN661, DCN680 / DCN680B (18‑gauge brad), DCN681 / DCN681N (stapler/brad variants), and DCN682 (18‑gauge brad) Easy to fit during routine maintenance with basic hand tools; sold as the complete bumper service kit for the listed models.