Freud Mortise Compression Router Bit 77 707 1 2 Inch Solid Carbide Spiral (4 Flute 24000 Max RPM Double Sided Plywood Melamine Cabinet Joinery) Floor Buffer 625 in (5 8 in) Coating 625 in (5 8 in) Coating Type Active Shield Non Stick Coating Tooth Tip Material High Velocity Carbide Primary Application Non Ferrous Metals and Plastics Maximum Speed Rating 6000 RPM Pro Tip: Apply a light spray of stick wax or cutting lubricant directly to the saw blade teeth prior to cutting thick non ferrous aluminum extrusions to prevent metal chip weld and prolong carbide edge sharpness (1) Integrated 2 Inch Adjustable Poly Web Belt with Quick Release Buckle The Freud 77 707 1 2 Inch Four Flute Mortise Compression Spiral Router Bit delivers industrial grade machining accuracy for processing double sided materials under 5 8 inch thickness forcing waste fibers downward into the cut core instead of pulling them upward