This dust boot system is specifically designed for CNC machines equipped with extended collets or for those utilizing extended end mills. Constructed from a 1/2" clear Plexiglass top plate, the system features a magnetic removable base holding a transparent, flexible screen, providing clear visibility of your cutting or engraving tool in action. The magnetic base can be effortlessly removed, allowing full access for tool installation. Design to fit a the spindle/router size selected and will accept a 4 inch vacuun port. Distance from bottom of top plate to screen tips is 95mm.