General description The 2pcs Drill Chuck set includes two keyless chucks designed for electric drill screwdriver conversion. Made from high-quality alloy, these chucks are durable, wear-resistant, and rust-proof. Their lightweight and compact design ensures ease of use without adding extra burden. Technical specifications Material: High-quality alloy Clamping range: 0.3-6.5 mm (silver chuck), 0.3-3.6 mm (black chuck) Length: 72 mm (silver chuck), 49 mm (black chuck) Compatibility and accessories Universal 1/4 inch hex handle for easy attachment to electric screwdrivers Usage Transforms electric screwdrivers into small drills or grinders Ideal for daily maintenance, woodworking drilling, sanding, and DIY projects