BitBuddie Universal Dust Shroud for Drilling and Coring, 1 3/8" Vacuum shroud used in dust and slurry containment while drilling. 1 3/8" Diameter allows for work with even the smallest drills. Capture dust and slurry at the source. Held in place by suction. Complies with EPA regulations for point-of-origin dust containment when used with a Dustless Technologies D1606 HEPA Vacuum.