When choosing spiral router bits always remember that up cut spirals direct shear towards the router and down cut spirals direct shear away from the router. Up cut therefore favours the face of the work piece facing away from the router and down cut favours the face of the work piece facing the router. Downcut spiral bits can be used for cutting grooves, dadoes and inlays. Downcut bits don't clear chips as quickly as upcut spiral bits but their downcut geometry pushes wood fibres down into the cut, leaving a cleaner top surface on your workpiece with minimal tearout. SpeTool Spiral Router Bits Up Down Compression Bit HRC55 Solid Carbide CNC End Mill for Wood Carving Engraving Grinding, Milling Cutters for Milling Machines (Shank Diameter 6 mm, Cut 6 mm x 32 mm) £18 99 Get it Tomorrow, Mar 2.
This wide range of metal spiral cutters available from Trend Direct UK comes with cutter diameter options varying from 8 to millimetres and shank sizes of . When choosing spiral router bits always remember that up cut spirals direct shear towards the router and down cut spirals direct shear away from the router. Up cut therefore favours the face of the work piece facing away from the router and down cut favours the face of the work piece facing the router. Downcut spiral bits can be used for cutting grooves, dadoes and inlays. Downcut bits don't clear chips as quickly as upcut spiral bits but their downcut geometry pushes wood fibres down into the cut, leaving a cleaner top surface on your workpiece with minimal tearout.

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