Wlauqueta 4 Pieces Metal 1/2-20UNF 1.5-13mm Keyless Drill Chuck Hex Shank/SDS/Square Socket Adapter Material Tool Drill Chuck

3. DESIGN - Three stage jaw design, allowing you to easily round shank drill bits from 1.5mm to 13mm Feature: 1. Easy to use: immediately convert the impact drill bit and quickly replace the drill bit 4. Function: superior clamping force, which can effectively prevent the drill bit from loosening and is more reliable 2. Easy to replace: the fingers of the keyless chuck are tightened to easier to replace the drill bit 5. Application: Replacing SDS Plus/Hex/Square Internal Thread Adapter with Electric Hammer