A studio product view of the Freud 12-158 double flute straight router bit, featuring a long red cutting head with sharp silver carbide edges and a polished 1/2-inch steel shank.
A technical diagram illustrating the cutting profile of the Freud 12-158 bit, showing a cross-section of wood with a straight cut that is 3/4 of an inch wide and 2 inches deep.
A technical 3D rendering of a wooden block featuring a clean, precise straight groove routed through the center to demonstrate the cutting capability of the Freud 12-158 bit.
A technical overhead diagram showing the double flute design of the Freud router bit, highlighting the red body and two silver cutting edges positioned for efficient material removal.
Woodworking with Freud's Double Flute Straight Bit promotional how to video
A studio product view of the Freud 12-158 double flute straight router bit, featuring a long red cutting head with sharp silver carbide edges and a polished 1/2-inch steel shank.
A technical diagram illustrating the cutting profile of the Freud 12-158 bit, showing a cross-section of wood with a straight cut that is 3/4 of an inch wide and 2 inches deep.
A technical 3D rendering of a wooden block featuring a clean, precise straight groove routed through the center to demonstrate the cutting capability of the Freud 12-158 bit.
A technical overhead diagram showing the double flute design of the Freud router bit, highlighting the red body and two silver cutting edges positioned for efficient material removal.
Woodworking with Freud's Double Flute Straight Bit promotional how to video
Freud

Freud 12-158 3/4 Inch Double Flute Straight Router Bit 1/2 Inch Shank TiCo Carbide Woodworking Tool for Grooving Edge Routing Plywood Hardwood

Only 1 left
SKU: 12-158
$29.49 USD

Description

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Achieve Mirror-Smooth Finishes with Freud’s Industrial Double Flute Straight Bit Technology

The Freud 12-158 Double Flute Straight Bit is the professional woodworker’s choice for high-precision grooving, edge-routing, and general-purpose joinery. Engineered with precise hook and shear angles, this bit delivers exceptionally fast cutting speeds while maintaining a glass-smooth finish in hardwoods, softwoods, plywood, and composite materials. Whether you are crafting intricate cabinetry or performing heavy-duty material removal, the dual-flute geometry ensures a balanced cut with minimal vibration, significantly reducing the need for post-cut sanding.

Constructed with Freud’s proprietary TiCo™ Hi-Density Carbide, the 12-158 is designed for maximum durability and a significantly longer cutting life compared to standard carbide bits. The tips are specially relieved to allow for efficient, burn-free plunge cuts, making it ideal for creating deep mortises or interior cutouts. Optimized for use in CNC machines, table-mounted routers, and hand-held portable routers, this heavy-duty 1/2-inch shank bit provides the stability and industrial-grade performance required for the most demanding shop environments.

Key Features

  • TiCo™ Hi-Density Carbide: Specially formulated carbide provides a sharper edge and resists wear for extended tool life.
  • Double Flute Design: Two cutting edges create a cleaner finish and allow for faster feed rates in all wood types.
  • Plunge Cut Efficiency: Relieved tips allow the bit to dive directly into the material for clean mortises and pockets.
  • Precision Balance: Computer-balanced to eliminate vibration and chatter, ensuring high-accuracy routing at up to 24,000 RPM.
  • Perma-SHIELD® Coating: Non-stick coating reduces heat buildup, friction, and resin accumulation.
  • Universal Compatibility: Engineered for peak performance in CNC, hand-held, and table-mounted router applications.
  • Versatile Application: Perfect for grooving, dadoes, rabbets, and edge-routing in solid wood and plywood.

What's Included

  • (1) Freud 12-158 3/4" Diameter Double Flute Straight Router Bit

Specifications

Shank Diameter (A) 1/2 Inch
Overall Diameter (D) 3/4 Inch
Carbide Height (h) 2 Inches
Overall Length (H) 3-1/2 Inches
Number of Cutters 2
Maximum RPM 24,000 RPM
Bit Material TiCo™ Hi-Density Carbide Tipped
Flute Style Double Flute
Cutting Style Straight / Plunge
Ideal Application Grooving, Edge-Routing, & Joinery
Pro-Tip: When routing deep grooves or dadoes with a 2-inch cutting height bit like the 12-158, always perform the cut in multiple shallow passes rather than one single deep pass. Aim for a depth of 1/4" per pass to maintain bit coolness and ensure the cleanest possible side-walls while reducing stress on your router’s motor and the carbide edges.