Makita's original dust extractor doesn't extract dust sufficiently enough, and it keeps falling off.Hence why I made a new one that sucks from both sides, and is attached by the screws for the parallel stop.You should get a second screw, and a spring/ring to fit under the screw if the parallel stop is in use. Else it will wobble in front a bit. But that will not make it work less.The backside still hooks in like usual, and is a rather snug fit to get on, to stop it from wobbling around when in use.You may want to take the plate off to install it, but you do not need to.

The hose connection port is 3.5 cm length internally and has has a 3.5cm diameter. It contains three indents to offer a friction fit.The insides are all rounded and aerodynamically designed to prevent collection of dust in the pipe.There's a little cube inside the STL file. That is 1x1x1cm in size, to allow you to scale your print properly.