Overview
Over time, drill chucks develop play and lose their grip. This replacement unit threads directly onto your drill’s spindle and delivers the snug, wobble-free bit holding you expect from a new tool. Manufactured to OEM tolerances for a precise fit.
Key specifications
- Type: keyless drill chuck
- Material: steel body with hardened jaws
- Thread: matches OEM spindle
Compatibility
Compatible with DeWalt DCD771C2 DCD777 DCD777C2 DCD709 DCD771B DCD776 DCD778 and related models. Cross-reference the OEM part number from your owner’s manual with the compatibility listing to verify fitment for your particular machine.
Installation notes
Take out the drill battery. Look inside the open chuck for a retaining screw and remove it (left-hand thread: turn clockwise). Chuck a short hex key tightly, then give it a sharp tap with a hammer to spin the old chuck off the spindle. Clean the spindle threads and screw the replacement chuck on hand-tight, then snug the retaining screw. Spin a bit to check for wobble.
Common questions
Q: Will this 1/2” drill chuck fit my DeWalt DCD771C2 or DCD777C2, and is it the same as part N472497?
Yes, this replacement chuck is made for the DeWalt models listed, including DCD771C2, DCD777, DCD777C2, DCD709, DCD776, DCD778, DW959K2, and others that use part number N472497. If your drill model matches that list and your original chuck cross-references to N472497, this is the correct fit.
Q: How do I replace the chuck on a DeWalt DCD771B or DCD776 without damaging the drill?
Start by removing the battery, opening the chuck fully, and taking out the retaining screw inside the chuck; on many DeWalt drills that screw is reverse-threaded, so it loosens by turning clockwise. After that, use a hex key or proper chuck removal method to spin the old chuck off the spindle, then thread the new 1/2” chuck on securely and reinstall the screw.
Q: My DCD709 chuck wobbles and sometimes won’t hold bits tightly—will replacing it fix that, and how should I maintain the new one?
If the wobble is coming from worn jaws or the chuck no longer tightens evenly, replacing the chuck usually solves the problem as long as the spindle itself is not bent. To keep the new chuck working well, brush out dust regularly, avoid overtightening with damaged bits, and keep the jaws clean so they grip straight and release smoothly.
