Specifically designed for Milwaukee M18 (also fits Craftsman, Makita, Dewalt, Ridgid), this 1/2" keyless chuck has a 1/2-20UNF mount and 1.5-13mm clamping range. It holds drill bits tightly, won't loosen easily, and offers long service life for repeated use. Made of high-quality steel, it's durable for long-term performance, boosting efficiency in DIY or professional tasks. The keyless self-tighten design lets you adjust by hand (with ratchet sound prompt) – no extra tools needed, saving time on bit changes. With carbide-tipped jaws, it locks bits firmly while reducing jaw wear; no slippage even with frequent use. Easy to install, it works seamlessly with hand drills and impact drivers. Ideal for hobbyists, handymen, and pros – delivers convenience, reliability, and consistent results.