Usage Tips: [1/2-inch Keyless Drill Chuck for Milwaukee]: This 1/2-20 UNF keyless drill chuck has a clamping range of 1.5 mm to 13 mm in diameter. It securely holds drill bits and resists loosening during operation. [Keyless and Self-Tightening Design]: Tighten or loosen the chuck by hand—no tools required. A ratchet sound provides tactile feedback during adjustment, enabling quick bit changes and saving time and effort. [Adaptable Design]: Includes a 3/8-inch to 1/2-inch keyless drill chuck adapter and square socket converter. Compatible with 3/8-inch SDS-Plus and 1/4-inch hex shank accessories. [Easy to Use and Install]: Features carbide-tipped jaws for strong bit grip and reduced jaw wear—even under heavy loads—ensuring long service life and reliable performance. [Widely Compatible]: Designed with a 1/2-20 UNF thread mount for compatibility with most electric drills, including models from Makita, Craftsman, Milwaukee, DEWALT, and RIDGID. Color: As shown Material: Metal Package Contents: 1 x impact drill adapter kit Note: Actual color may vary slightly due to lighting and screen settings. Measurement tolerance: ±1–3 cm.