Studio product shot of the Freud 12-140 double flute straight router bit, featuring a thick 1/2-inch silver shank and a long red Perma-SHIELD coated cutter body designed for deep mortising.
Technical line drawing indicating dimensions for the Freud 12-140 bit: 5/8 inch overall diameter, 1-1/2 inch carbide cutting height, 1/2 inch shank diameter, and 3 inches overall length.
3D illustration showing a block of wood with a deep, clean, square-bottomed groove cut into the surface, demonstrating the material removal capability of the 12-140 straight bit.
Top-down profile view of the router bit, showing the 5/8 inch circular cutting path and the arrangement of the two opposing carbide cutting flutes against the red bit body.
Studio product shot of the Freud 12-140 double flute straight router bit, featuring a thick 1/2-inch silver shank and a long red Perma-SHIELD coated cutter body designed for deep mortising.
Technical line drawing indicating dimensions for the Freud 12-140 bit: 5/8 inch overall diameter, 1-1/2 inch carbide cutting height, 1/2 inch shank diameter, and 3 inches overall length.
3D illustration showing a block of wood with a deep, clean, square-bottomed groove cut into the surface, demonstrating the material removal capability of the 12-140 straight bit.
Top-down profile view of the router bit, showing the 5/8 inch circular cutting path and the arrangement of the two opposing carbide cutting flutes against the red bit body.
Freud

Freud 12-140 5/8 Inch Double Flute Straight Router Bit 1/2 Shank 1-1/2 Cut Length Deep Grooving Mortising TiCo Carbide Wood Plywood

Only 1 left
SKU: 12-140
$19.29

Description

Experience Deep Precision Mortising with the Freud 5/8 Inch Straight Router Bit

Tackle deep joinery and heavy material removal with confidence using the Freud 12-140 5/8 Inch Double Flute Straight Bit. While standard bits often fall short on depth, this tool features an extended 1-1/2 inch carbide cutting height, making it the ideal choice for deep mortising, cutting thick tenons, or routing deep dados in a single tool setup. Anchored by a heavy-duty 1/2-inch shank, this bit provides the exceptional rigidity needed to minimize chatter and vibration, ensuring perfectly straight walls and flat bottoms even when extending deep into hardwood, softwood, or plywood.

The 12-140 is engineered for endurance and finish quality. It utilizes Freud's exclusive TiCo Hi-Density Carbide, a proprietary formulation designed to withstand the high heat generated during deep cuts, retaining a sharp edge up to four times longer than standard carbide tools. The computer-balanced double flute geometry incorporates precise hook and shear angles that slice cleanly through wood fibers, leaving a polished surface that requires little to no sanding. With end-relieved tips for efficient plunge cutting, this bit is a versatile powerhouse for CNC production, table-mounted joinery, and heavy-duty hand-held routing.

Key Features

  • Deep Cutting Capacity: 1-1/2 inch carbide height allows for deep mortising and grooving in thick stock.
  • Versatile 5/8 Inch Diameter: Perfect for hardware installation, wide dados, and general stock removal.
  • TiCo Hi-Density Carbide: Proprietary blend resists heat and wear for maximum edge life.
  • Heavy-Duty Shank: 1/2-inch shank ensures stability and reduces vibration during deep cuts.
  • Plunge Ready: Relieved tip geometry allows for vertical drilling and pocketing applications.
  • Clean Finishes: Shear angles are engineered to reduce tearing and produce smooth edges.
  • Versatile Compatibility: Safe for use in CNC, table-mounted, and hand-held routers.

What's Included:

  • (1) 5/8 In. Double Flute Straight Bit with 1/2 In. Shank (Model 12-140)

Specifications

Model Number 12-140
Overall Diameter (D) 5/8 In.
Shank Diameter (A) 1/2 In.
Carbide Height (h) 1-1/2 In.
Overall Length (H) 3 In.
Number of Cutters 2 (Double Flute)
Max RPM 24,000 RPM
Material TiCo Hi-Density Carbide
Bit Type Deep Cut Straight Plunge
Application Material Wood, Plywood, Composites
Pro-Tip: Even though this bit has a long 1-1/2" cutting height, you should rarely cut that full depth in a single pass, especially with a wide 5/8" diameter. To avoid overheating the bit and stressing your router motor, make multiple passes of approximately 1/4" to 3/8" deep until you reach your final depth.