Thanks to the 7-stage adapter, the extraction system can be connected airtight to a wide variety of machine tools in no time at all. Simply cut to the required size and attach. In addition, the diameter can be expanded up to 8mm by heating the flexible material. Adapter dimensions: Ø Outer. Ø Inside: 36mm, 30mm. 50mm, 44mm. 63mm, 57mm. 76mm, 70mm. 102mm, 96mm. 127mm, 121mm. 147mm, 141mm.