Heavy duty steel body with diamond dust cutting segments. For dry cutting of accurate holes in masonry. Includes 3 core drills (28, 52 and 107mm), 2 arbors (SDS Plus and hex), guide drill bit and drift key. For use with drills equipped with a safety clutch. Do not use with hammer action. Heavy duty steel body with diamond dust cutting segments. For dry cutting of accurate holes in masonry. Includes 3 core drills (28, 52 and 107mm), 2 arbors (SDS Plus and hex), guide drill bit and drift key. For use with drills equipped with a safety clutch. Do not use with hammer action.