Features: Engineered for versatility, this alloy drill chucks securely grips bits from 0.3mm to 3.2mm, combining durability with wide compatibility for professional drilling tasks. The three jaw design ensures uniform clamping force and enhanced concentricity, maintaining bit stability during high speed operations in metalworking and woodworking projects. Ideal for mechanics, and DIYer enthusiasts requiring reliabled performances in precise drilling applications. Perfect for workshop environments, construction sites, and home garages where quick bit changes and consistent drilling accuracy are essential. Crafted with wear resistant alloy construction, this chucks resists corrosions while delivering smooth operations across extended periods of heavy duty use. Specifications: Component: Alloy. Size: 24x14x14mm/0.94x0.55x0.55inch Weight: 30g. Package Includes: 3pcs Drill Chucks note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.