Check the listing for details. Jacobs 3/8" Keyless Drill Chuck w/ 1/2"-20 Threaded Mount for DeWalt Drills. Condition: New. Listed at 17.95 USD. Photos show the item you will be receiving. It has a 3/8" (10mM) capacity, and is a keyless chuck. It is manufactured by Jacobs. This fits many, but not all, DeWalt drills. It is best to check your manual for proper chuck replacement sizing. I have a list below to help, but it is probably not complete. Your drill will need a 1/2" mount. Some drill mounts are not 1/2", with 3/8" being a popular alternate size, and this chuck will not fit onto those mounts. This chuck threads onto a 1/2"-20 mount. This chuck is black in color and all metal. Compatible with the following: DeWALT: DW927, DW927V, DW928, DW929, DW952B, DW952, DW953V, DW953, DW954, DW955 Angle, DW958, DW960, DW960P, DW960W, DW960K-2, DW960K, DW965, DW965 Rt Angle, DW966, DW971, DW975B, DW975, DW991B, DW991, DW991Q, DW108 1/8, D21008K, D21008KG, D21009, DWD112, DWD115, DWD110, D21008, 1187 HD Keyless Chuck Drill