From portable circular saw to groove router. With the groove unit conversion kit, the versatile HK 85 becomes a groove router for transverse and longitudinal grooves, making it a real all-rounder. For grooves with a width of 16 mm to 25 mm and a depth of up to 35 mm. Easy-to-install groove unit. Reversible carbide cutting blades and pre-cutting blades for a high surface quality and rapid working progress. Spacer rings enable the required groove widths to be set. Routing edge corresponds to the cutting edge. Extractable via integrated extractor connector (dia. 36 mm). Can be used in hard or soft wood. Routing a groove in rafters. Creating cable ducts. Routing a groove in brackets. Creating all types of notch. Staircase construction. Furniture manufacture. Achieve ideal results more quickly:. Convenient and safe:. Systems get it done:. The quick conversion from portable circular saw to groove router expands the opportunities to use the HK 85. The carbide reversible cutter blade and pre-cutter ensure clean and precise milling results. Flexible adjustment for groove widths ranging from 16 to 25 mm and groove depths up to 35 mm.. The integrated extractor connector facilitates efficient dust extraction for clean and healthy working conditions.. No more awkward positioning and set-up thanks to full compatibility with the guide rail system. routing transverse and longitudinal grooves; routing depth 0-35 mm and routing width adjustable by 16-25 mm. can be used with FS, FSK and PA. for HK 85