DEWALT Chuck in the Drill Parts & Attachments department at Lowes.com
Drill Bit Extension Set,4Pcs Magnetic Drill Screwdriver Bit Holder Bar Chuck Adapter Extender 1/4 inch Hex Quick Release Bit Holder for Impact Driver Screws Nuts Drill - Yahoo Shopping
Makita 3/8 in. Metal Keyless Chuck for Impact Driver 763198-1 - The Home Depot