This is an adaptable adapter to connect power tools to a standard 2.5" (35mm) vacuum cleaner. The adapter can be used with various tools including Scheppach TS120o Table Saw (100mm) and Ryobi Miter Saw (64mm). For the best possible result and perfect fit, a heat gun can be used to soften the mouth of the adapter if the measurement is a little tight.The Github link of the product is: https://github.com/amadeuspzs/openscad/tree/main/dust-extraction-vacuum-adapter