Studio product shot of the Freud 12-520 double flute straight router bit, featuring a silver 1/2-inch shank and a red Perma-SHIELD coated cutter head.
Technical diagram showing a cross-section of a wood cut, indicating a slot width of 10mm and a cutting depth of 1-1/4 inch for model numbers 04-520 metric and 12-520 metric.
3D computer graphic showing a block of wood with a square channel groove cut into the top surface, illustrating the profile created by the straight bit.
Top-down diagram of the router bit profile showing the circular cutting path and the arrangement of the two grey carbide cutting flutes against a red background.
Studio product shot of the Freud 12-520 double flute straight router bit, featuring a silver 1/2-inch shank and a red Perma-SHIELD coated cutter head.
Technical diagram showing a cross-section of a wood cut, indicating a slot width of 10mm and a cutting depth of 1-1/4 inch for model numbers 04-520 metric and 12-520 metric.
3D computer graphic showing a block of wood with a square channel groove cut into the top surface, illustrating the profile created by the straight bit.
Top-down diagram of the router bit profile showing the circular cutting path and the arrangement of the two grey carbide cutting flutes against a red background.
Freud

Freud 12-520 10mm Double Flute Straight Router Bit 1/2 Inch Shank TiCo Carbide for Precise Grooving and Edge Routing Wood Composites

Only 1 left
SKU: 12-520
$19.97
Description

Achieve Metric Precision and Superior Finish with the Freud 10mm Double Flute Straight Router Bit

Execute precise metric joinery and grooving tasks with the Freud 12-520 10mm Double Flute Straight Bit. This professional-grade cutter is essential for woodworking projects requiring exact 10mm slots or holes, often found in European hardware installations and specific plywood applications. Engineered with Freud’s exclusive TiCo Hi-Density Carbide, a specially formulated blend of Titanium and Cobalt, this bit offers maximum hardness and heat resistance. This premium construction ensures the cutting edge stays sharper longer, delivering clean, chatter-free cuts in hardwood, softwood, plywood, and abrasive composites.

The 12-520 is designed for versatility and performance across all router types. Its computer-balanced double flute geometry features precision-ground hook and shear angles that slice efficiently through wood fibers to leave a smooth surface finish requiring minimal sanding. The carbide tips are relief-ground to facilitate safe and effective plunge cuts, making this tool perfect for creating mortises, deep grooves, or internal cutouts. With a robust 1/2-inch shank providing exceptional stability and reduced vibration, this bit performs flawlessly in CNC machines, table-mounted routers, and hand-held tools.

Key Features

  • TiCo Hi-Density Carbide: Proprietary carbide blend delivers exceptional durability and extends cutting life in tough materials.
  • Metric Precision: 10mm cutting diameter is ideal for metric joinery, hardware installation, and specific plywood dados.
  • Double Flute Design: Two precision-ground edges ensure fast chip removal and a smooth, superior finish.
  • Plunge Cutting Capability: Relieved tips allow for vertical drilling and starting grooves in the center of the workpiece.
  • 1/2 Inch Shank: Heavy-duty shank diameter provides maximum stability and minimizes vibration during deep cuts.
  • Universal Compatibility: Safe and effective for use in CNC, hand-held, and table-mounted routers.

What's Included:

  • (1) 10mm Double Flute Straight Bit with 1/2 In. Shank (Model 12-520)

Specifications

Model Number 12-520
Overall Diameter (D) 10mm (approx. 0.394 In.)
Shank Diameter (A) 1/2 In.
Carbide Height (h) 1-1/4 In.
Overall Length (H) 2-3/4 In.
Number of Flutes 2 (Double Flute)
Max RPM 24,000 RPM
Material TiCo Hi-Density Carbide
Bit Type Straight Plunge
Application Material Wood, Plywood, Composites
Pro-Tip: Metric router bits like this 10mm cutter are frequently the perfect solution for creating snug dados for "undersized" 1/2-inch plywood or installing specific European hardware. Always measure your material or hardware with calipers first; if it reads closer to 0.39" than 0.5", this 10mm bit will provide a much tighter, stronger joint than a standard 3/8" or 1/2" bit.