Tork Craft Chuck & Key 13mm 1/2 X 20 Blister

13mm Drill Chuck with key Ultra replacement 13mm (1/2″) keyed chuck, 20 UNF thread. Replacement drill chuck for use in most small electric and cordless drills. • Fits most 13mm drills • 1/2in x 20 UNF thread • Opening capacity: 13mm • All metal construction for durability • Chuck key included Installation Info Most chucks will have a reverse threaded screw locking them in place that will have to be removed before unscrewing and replacing the chuck.