Chargenyang 3 Pcs 1/4 Inch Hex Shank Keyless Drill Chuck Conversion Tool,0.3-6.5 mm&0.3-3.6mm&0.8-8mm Hex Shank Mini 3-Jaw Drill Chuck Designed for the most exact, fine-detailed drilling jobs Every company machining small parts is familiar with the problem of holding small drills and milling cutters. Collets or shrink fit chucks are not typically suitable for cutter shafts under 1mm diameter. Special tool-holders are required for these small diameters. This micro drill chuck can solve this problem. The keyless chuck securely holds round-shank drill bits without the need for keys or extra tools to install the drill bit This chuck converter goes Easily the locks and releases drill bits, quickly convert your quick change hex shank driver unto a drill. these drill chucks have various specifications and can be adapted to most drills and cordless power screwdrivers; They can be applied in car, garages, warehouses, offices, homes, etc. Chargenyang 0.3mm - 8mm Quick Change Keyless Drill Chuck Adapter Conversion Tool Specification: Material: high strength carbon steel Clamping Range: 0.3-8mm Shank: 1/4 Inch (6.35mm) Hex Shank Please Note: - Please do NOT turn it counterclockwise! - Please allow little size errors due to manual measurement. - Please clamp the shaft in right place and necessary protective measures in woodworking processing. Package Included: 3 x Keyless Chuck Adapter Keyless Drill Chuck Bit Keyless Drill Chuck Bit Add to Cart Add to Cart Customer Reviews 4.1 out of 5 stars 167 2.8 out of 5 stars 6 Price $19.99$19.99 $24.71$24.71 quantity 3 2