Festool HS Spiral Groove Cutter HS Spi S8 D16/20 – 16 mm Diameter, 20 mm Cutting Length, 8 mm Shank

Overview

Festool HS Spiral Groove Cutter HS Spi S8 D16/20 At a Glance: 16 mm cutting diameter | 20 mm cutting length | 8 mm shank | HS high-speed steel | Right-hand spiral with upward chip removal. Create clean grooves and accurate template-guided cut-outs in solid wood with the Festool HS Spi S8 D16/20 spiral groove cutter. Particularly suited to softwood, its high-speed steel cutting edges provide a smooth drawing cut that reduces cutting pressure and supports clean routing results. The spiral geometry carries chips upwards out of the groove, helping clear the cutting area and supporting effective extraction. With a 16 mm cutting diameter, this cutter is a practical choice for wider grooves, guided recesses and shaped cut-outs in furniture and joinery components. Spiral cutting performance for solid wood The right-hand spiral combines smooth cutting action with upward chip evacuation. A base cutting blade supports plunge entry when used with a suitable plunge router, allowing internal routing operations to start within the workpiece. Product Highlights • 16 mm cutting diameter: Suitable for wider grooves and template-guided routing. • HS cutting material: High-speed steel, particularly suited to softwood applications. • Smooth running: The drawing cut reduces cutting pressure during routing. • Upward chip transport: Helps remove waste from the groove as the cutter advances. • Base cutting blade: Supports controlled plunge entry with an appropriate router. Product Compatibility • Festool OF 900 and OF 1000. • Festool OF 1010 and OF 1010 R. • Festool OF 1400. • Festool OF 2000 and OF 2200. Correct collet and guiding arrangement required Fit the cutter in a matching 8 mm collet according to the router’s instructions. Template routing requires a suitable copying ring or guiding system. Allow for the offset between the guide and cutter when preparing the template.