Makita 3/8 in. Metal Keyless Chuck for Impact Driver 763198-1 - The Home Depot
Eummy Metal Heavy Duty 1/2-20UNF 1.5-13mm Keyless Drill Chuck Self-tighten Keyless Chuck Quick Change Drill Bit Adapter Professional Hardware Tool for Impact Driver Screwdriver Hammer Drill Rotary T - Walmart.com