ATTACH DUST CLTN UNIV CORE BIT

Replaceable brush ring provides dust seal for a wide range of bit diameters. Rubber seal maintains suction on the drilling surface. It is optimized for drilling diameters from 1 1/2 in to 5 in but can accommodate up to 6 in if the brush ring is removed. The attachment features two unique air chambers: one allows the drilling bit to pass through when drilling into the work surface. The second air chamber is designed to maintain suction to the wall during the drilling application.