Original DeWalt 1004691-29 — replacement collar (positioning ring) designed to locate and secure the front assembly on compatible rotary hammers. It restores correct spindle / chuck alignment and fit so the tool runs smoothly after a repair. Fits example models such as Black & Decker KD1250K (Type 1), KD1010K, BPHR323K and Stanley FME1250 (used in the Type‑1 parts).

This genuine DeWalt collar is a compact, service‑replacement power tool parts item you can swap in quickly to get a hammer back into service without altering other components.