Drill chuck for holding accessories with round or hexagonal shank easy and fast to use with existing metal drills bits wood drills and other hammer drill accessories with round or hexagonal shaft simply insert into the hammer drill with sds plus drill chuck and then youre good to go features quick action keyless chuck with sds plus holder for round and hexagonal tools recording capacity 2 13 mm thread m 18 x 15 collets to match the electronic milling and grinding motors type 964478 8