Features: Use convenientlyClamping Range: 1.5-13mm/0.1-0.5inch ; Connection Size:1/2-20UNF.Easy and quick to change accessories replacement on multi tool without changing collets.With heat treatment, the product has good toughness and higher structural strength. Easily the locks and releasesEasily the locks and releases drill bits, quickly convert your quick change shank driver unto a drill. The unique thrust bearing is easy to convert the torque applied by the handle into greater clamping force. Strong clamping forceKeyed Drill Chuck is a simple and reliable solution for fixing drill bits for any type of job.Consistently strong clamping force that securely fastens cylindrical shank drill bit.Easy handling: jaws are conveniently tightened and loosened with a key. Strong, durableMade of metal material, strong, durable, unlimited used in automotive, garages, warehouses, offices, homes etc..The unique patent locking function breaks through the traditional locking method, with ratchets on the back. Improve your work effiencyInstantly convert impact driver to hold non-quick change drill or driver bits, easy to use and improve your work effiency.The locking plate is installed in the back sleeve, which can prevent loosening and loosening in the work more effectively and make the clamp more reliable when holding the tool. Use methods This chuck is lockable. After tightening it, if you tighten it again, you will hear a click, and the drill bit will be locked, and it can be rotated forward or reversed. If there is no lock, reverse and the claws will come loose and the bit will come off. Specifications: Material:Metal Color:Black Size(about):43x71mm/1.7x2.8inch(WxH); Gripping rate: 1.5-13mm/0.1-0.5inch Package Included: 1pc x Drill Chuck 3pcs x Connect head Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement. _x000D_