A chuck is an ideal tool compatible bit conversion, which can convert a cordless electric screwdriver into a bit or grinder in a few seconds. It has a keyless design, and accessory without tools allows you to lock and release quickly and easily. A 3-jaw design is adopted in this chuck, which can easily and firmly fix a round shank drill bit of 2mm to 13mm. It can quickly change the universal joint, is suitable compatible impact screwdrivers, and can be easily clamped into electric screwdrivers. It is constructed of metal material. The diameter of each product is 43mm. The total height of the product is 64mm. It is suitable compatible household, workshop, industry, factory, etc. Item Name: Electric Drill Chuck Material: Metal Features: Self-locking, No Key Tightening, Large Clamping Range Size Details: Diameter: 43mm/1.69"(Approx.) Height: 64mm/2.52"(Approx.) Notes: This product cannot be used counterclockwise and is not suitable compatible impact drivers or applications involving high torque loads. Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Electric Drill Chuck 1 x Hex Shank Rod