It connects to standard dust extractor tubes of Bosch dust extractors. The Multi-Purpose Nozzle is available with 2 or 3 inserts for wet and dry applications. The inserts feature a rubber lip for water surfaces, a brush for smooth surfaces and a plastic head for carpets.Multi-purpose nozzlefor wet and dry applications with 2 inserts: rubber lip for water, brush for smooth surfaces• External Dust Extraction Device• Multi-Purpose Nozzle is available with 2 or 3 inserts for wet and dry applications• Inserts include a rubber lip for water surfaces, a brush for smooth surfaces and a plastic head for carpets• Connects to standard dust extractor tubes of Bosch dust extractorsSpecifications:Diameter mm: 35,0