Original DeWalt N765979 — keyless, ratcheting chuck assembly built to the same spec as the factory unit for the DCD1007 series.

Holds bits from about 1.5 mm up to 13 mm and is the same nitro‑carburized metal, carbide‑insert, ratcheting design DeWalt uses for high bit‑retention in the DCD1007.

Direct fit for DeWalt DCD1007 model — a straightforward replacement when the chuck is worn, slipping, or damaged. This original DeWalt part is listed among DeWalt parts for those models.

Simple swap‑in replacement: the assembly includes the complete chuck ready to install, restoring proper bit grip and the tool’s advertised chuck capacity and performance.