3 Pcs/set Metal Heavy Duty 1/2-20UNF 13mm Keyless Drill Chuck Hex Shank/SDS/Socket Square Female Adaptor Hardware Tool Professional

Instantly convert the impact driver to hold non-quick change drill & driver bits & impact wrench. Keyless chuck finger-tightens for easy bit changes. Class 3-Jaw Design - Allows you to effortlessly hold round-shank drill bits from 1.5mm to 13mm securely. Greater clamping force with lock, effectively preventing drill bits from loose off, more reliable. Quick-change SDS-Plus/Hex/Square female adapter for an electric hammer. Mount:1/2-20UNF.