Studio product shot of the Freud 12-148 double flute straight router bit, featuring a 1/2-inch silver shank and a red Perma-SHIELD coated cutter head with an 11/16 inch cutting diameter.
Technical diagram showing a cross-section of a wood cut, indicating a precise slot width of 11/16 inch and a cutting depth of 1-1/4 inch for model number 12-148.
3D computer graphic showing a block of wood with a clean, deep rectangular channel groove cut into the top surface, illustrating the grooving profile of the 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 12-148 double flute straight router bit, featuring a 1/2-inch silver shank and a red Perma-SHIELD coated cutter head with an 11/16 inch cutting diameter.
Studio product shot of the Freud 12-148 double flute straight router bit, featuring a 1/2-inch silver shank and a red Perma-SHIELD coated cutter head with an 11/16 inch cutting diameter.
Technical diagram showing a cross-section of a wood cut, indicating a precise slot width of 11/16 inch and a cutting depth of 1-1/4 inch for model number 12-148.
3D computer graphic showing a block of wood with a clean, deep rectangular channel groove cut into the top surface, illustrating the grooving profile of the 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 12-148 double flute straight router bit, featuring a 1/2-inch silver shank and a red Perma-SHIELD coated cutter head with an 11/16 inch cutting diameter.
Freud

Freud Straight Router Bit 12-148 11/16 Inch Double Flute (1/2 Inch Shank Perma-SHIELD TiCo Carbide 24000 RPM Custom Grooving Mortising Plywood)

Only 1 left
SKU: 12-148
$19.79 USD

Description

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Freud 12-148 11/16 Inch Double Flute Straight Router Bit

The Freud 12-148 is an 11/16-inch overall cutting diameter double flute straight router bit engineered to route precise 11/16-inch channels, hardware mortises, custom dadoes, and straight edge joinery profiles. Built with a rigid 1/2-inch shank and a 1-1/4-inch carbide cutting height, this 2-cutter tool features end-relieved tip geometry that enables clean, burn-free plunge entries into timber stock and composite panels. Tipped with TiCo™ Hi-Density Micrograin Carbide, protected by heat-resistant red Perma-SHIELD®, and computer-balanced to eliminate cutter chatter, it operates at rotational speeds up to 24,000 RPM across CNC machinery, router tables, or handheld routers in solid hardwoods, softwoods, plywood, and wood composites.

Best Used For:

  • 11/16-Inch Custom Dado & Channel Milling: Machining exact 11/16-inch wide dado grooves, shelf standard channels, and cabinet joinery slots in specialty sheet goods.
  • Hardware Mortising & Pocketing: Plunging directly into timber stock to route flat-bottomed recesses, lockset pockets, and hardware mounting plates.
  • Straight Edge Trimming & Panel Profiling: Trimming full-depth 1-1/4-inch timber borders and square joint shoulders without surface tearout.

Key Performance & Safety Features

  • Perma-SHIELD® Non-Stick Coating: Protective red fluoropolymer coating repels pitch buildup, reduces friction drag, and guards against thermal degradation.
  • TiCo™ Hi-Density Micrograin Carbide: Custom-formulated titanium-cobalt micrograin carbide edges withstand cutting heat and preserve edge sharpness.
  • Heavy-Duty 1/2-Inch Shank: Rigid 1/2-inch steel shank diameter minimizes tool flex, runout, and cutter vibration during heavy routing passes.
  • End-Relieved Plunge Cut Tip: Precision-ground end face geometry supports vertical drilling entry for starting internal grooves and blind mortises.
  • Dual-Flute Precision Balance: Computer-balanced twin cutters distribute chip load evenly to produce smooth sidewalls and flat bottom cuts.
  • 24,000 RPM Maximum Speed Rating: Precision-engineered steel body maintains stable, chatter-free rotation across table-mounted, handheld, and CNC setups.

What's Included

  • (1) Freud 12-148 11/16" Double Flute Straight Router Bit with 1/2" Shank

Technical Specifications

Brand Manufacturer Freud® Tools
Model Part Number OEM SKU 12-148
Overall Cutting Diameter (D) 0.688 inches (11/16" / 17.5 mm)
Shank Diameter (A) 0.500 inches (1/2" / 12.7 mm)
Carbide Cutting Height (h) 1.250 inches (1-1/4" / 31.8 mm)
Overall Tool Length (H) 3.000 inches (3" / 76.2 mm)
Number of Carbide Cutters 2 Flute Carbide Cutters
Cutting Style Profile Straight / Plunge Cutting Edge
Body Protective Coating Red Perma-SHIELD® Non-Stick Fluoropolymer
Maximum Operating Speed 24,000 RPM
Cutter Metallurgy Material TiCo™ Hi-Density Micrograin Carbide Tipped
Primary Machine Compatibility CNC Routers, Handheld Routers, Router Tables

Pro-Tip: When routing deep 11/16-inch wide dadoes in dense hardwoods, step down pass depths in increments no greater than 5/16 inch to facilitate efficient chip evacuation and avoid thermal pitch buildup.