Unica dust collector socket for QBit UX. Compatible Dust Collector Manufacturer: One size fits all; Fits dust collector hose or dust collector opening diameter 1.2 - 1.5 inches (30 - 38 mm). Contents: 1; Material: Body: Polyvinyl chloride; Uses: Unica dust drill system system for connecting dust collectors for QBit UX; Compatible dust collector manufacturer: Hitachi, Makita (one size fits all); Specifications: Fits dust collector hose or dust collector mouth openings 1.2 - 1.5 inches (30 - 38 mm)