How to Use Screw it onto your drill bit. The keyless and selftightening design ensures stable performance at speeds. Key Benefits Keyless, selftightening chuck provides reliable grip and reduces the need for a separate chuck key. Stable operation at speeds, minimizing runout and slippage. Lightweight and compact design enables quick and straightforward installation. Durable alloy construction offers longterm reliability and resistance to deformation. Wide clamping range (2–13 mm) covers common drill bit sizes for versatility. Standard connection size (1/220 UNF) ensures broad compatibility with many drills. Product Specifications Item Type: Drill Chuck Chuck Diameter: approx 43 mm / 1.69 in Connection Size: 1/220 UNF Clamping Range: approx 2–13 mm / 0.08–0.51 in Package List: 1 x Drill Chuck, 3 x Rods Material alloy material with sturdy construction, not easy to break and very sturdy in the long run. Quick Installation Quick to ; the lightweight and compact size of the keyless drill chuck allows for convenient installation. Use Scenarios Woodworking: install small to medium drill bits to create precise holes in furniture and cabinetry. Metalworking: use with appropriate bits to drill pilot holes or through metal components in automotive or fabrication projects. General DIY and : swap in seconds to handle plastic, plywood, or composite materials for quick hole drilling or doweling tasks.