Genuine DeWalt ball spindle — part 492823-00 — a hardened steel detent/retaining ball that restores secure bit retention and reduces play or wobble in the chuck/crankshaft assembly of many DeWalt rotary hammers; a common spare among power tool parts for returning worn units to reliable performance.

Details you’ll find useful: this is a precision-turned ball/spindle (often described as a pin‑ball or detent ball) finished for impact duty and location accuracy in the bit-holder. Typical external dimensions are approximately 33 × 13 × 10 mm (converted from published measurements), and it’s supplied as the single ball spindle used inside the chuck/crank mechanism to support impact loads and keep the accessory shank located correctly.

Example models that use part 492823-00 (selection): DC212K, DC213 / DC213KL, DC223, DC228KL, DC233KL, DC234K, DCH213, DCH253, DCH273, DCH274 and DCH363 (among other DeWalt rotary-hammer/drill variants). If your unit shows loose bit retention, excessive wobble, or a missing/damaged retaining ball, this original DeWalt spare will restore the correct engagement.