Features: 100% brand new and high quality High Quality Material: Made of high quality metal , ecofriendly and stable, firm and durable. Easy to install: directly replace the old or broken one. Application: Good performance, convenient and practical, suitable for home and professional use. Lightweight Size: Portable and small size, easy to store and carry, bring you convenience. Package Includes: 1x 10mm Adapter Male Thread Screw for Drill Chuck Adapter. Package Includes: 1x 10mm Adapter Male Thread Screw for Drill Chuck Adapter Specifications: Material: Metal Color: As the Picture Shows Model: Hand Tightening Chuck, Hand Tightening Collets with Screws, Hand Tightening Chuck with Hexagonal Handle, Hand Tightening Chuck with Round Handle, Hand Tightening Chuck with Square Handle, Round Handle Connecting Rod with 5mm Screw, Hexagonal Handle Connecting Rod with 5mm Screw. Net Weight: 177g/0.39lbs 177g/0.39lbs 220g/0.49lbs 220g/0.49lbs 230g/0.51lbs 42g/0.09lbs 40g/0.09lbs note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.