5 Metre Dust Extraction Hose, High Performance, High Visibility , Hard Wearing, Crush Resistant 32mm Vacuum Hose. Air Velocity Adjustment Helps To Reduce The Strain On The Vacuum Motor When Used On A Power Tool That Restricts The Air Flow, Such As Sanders. Has A Quick Release Function So Other Adaptors Can Be Easily Added. New Adaptor Set Coming Soon. Compatible With Most Power Tools, From All Major Brands: Makita & Dewalt. Sizes - See Second Image A. Internal Diameter 20mm - END Outer Diameter 31 mm, Mid Outer Diameter 36.1 mm, Max Outer Diameter 39mm B. Internal Diameter 26mm - END Outer Diameter 35 mm, - END Outer Diameter 40 mm C. Internal Diameter 33mm - END Outer Diameter 41.5 mm D. Internal Diameter 38mm - END Outer Diameter 48.5 mm