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Freud Double Flute Mortise Compression Spiral Router Bits

Freud 77-510 Mortise Compression Spiral Router Bit 1/2" Shank 1/2" D 1-3/8" CL
$81.97
Freud 77-508 Double Flute Mortise Compression Router Bit 1/2" Shank 1/2" D 7/8" CL
$80.97

Create Mortises or grooves with a perfect top surface, or through-cuts in thin double sided veneers and laminates with Freud's Double Flute Mortise Compression Spiral Router Bits.


  • Shorter up shear length allows bit to be used for grooves and mortises without chipping top surface. 
  • Ideal for through cuts in double sided sheets that are 5/8" thick or less. 
  • Combination of up and down shear flutes eliminates chipping on both sides of double sided panels. 
  • Routs melamine, veneer plywood and other double sided materials as well as hardwoods and softwoods. 
  • Use on CNC and other automatic routers as well as hand-held and table-mounted portable routers. 
  • Double flute spirals are for extra clean cuts at faster feed rates.