Retractable Quick ReleaseBuilt-in stable lock and high-efficiency spring speed up the replacement of drill bits Excellent QualityThe adapter made of chrome-vanadium alloy steel, stable performance, wear-resistant and durable Spherical HandleNon-slip design, press the drill bit to release it, helping you quickly replace it in one second Universal Hex ShankWith the 6.3mm hex handle chuck, quick separation of the electric drill and the drill bit can be realized Drill Chuck AdapterSuitable for electric drill chucks without quick-change function such as hand drills and lithium drills Product Specifications: Quantity: 3 pieces Product length: 50 mm Hex handle diameter: 1/4 inch (6.3 mm) Packing size: 12*7.5*2.5 cm Single product weight: 40 g Package weight : 120g Material: Chrome vanadium alloy steel Magnetic: No Warm Tips: Please allow slight errors in product size and color due to differences in measurement methods and display screens. Delivery quantity: 3 pieces Product color: black gold Product size: 60 mm long Note: Manual measurement, please allow an error of 1 - 3 cm!!!Welcome to meet