Studio shot of the Freud 12-106T double flute straight router bit featuring a red Perma-SHIELD body, two TiCo carbide flutes, and a 1/2 inch silver shank.
Technical profile diagram illustrating the 5/16 inch wide straight groove cut into a wood edge by the Freud 12-106T bit, specifying a 1 inch maximum depth.
Studio shot of the Freud 12-106T double flute straight router bit featuring a red Perma-SHIELD body, two TiCo carbide flutes, and a 1/2 inch silver shank.
Studio shot of the Freud 12-106T double flute straight router bit featuring a red Perma-SHIELD body, two TiCo carbide flutes, and a 1/2 inch silver shank.
Technical profile diagram illustrating the 5/16 inch wide straight groove cut into a wood edge by the Freud 12-106T bit, specifying a 1 inch maximum depth.
Studio shot of the Freud 12-106T double flute straight router bit featuring a red Perma-SHIELD body, two TiCo carbide flutes, and a 1/2 inch silver shank.
Freud

Freud Router Bit 12-106T 5/16 In Dia 1/2 In Shank Double Flute Straight (24000 RPM TiCo Carbide Perma-SHIELD Dado Mortising CNC Woodworking Tool)

Only 1 left
SKU: 12-106T
$15.99 USD

Description

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Precision Freud 5/16 Inch Double Flute Straight Router Bit 12-106T with 1/2 Inch Shank

The Freud 12-106T 5/16-Inch Diameter Double Flute Straight Router Bit operates as a commercial-grade grooving and mortising tool engineered to execute rapid stock removal, dadoes, rabbets, and plunge cuts in solid hardwoods, softwoods, plywood, and wood composites. Manufactured with micrograin TiCo High-Density Carbide cutters treated with friction-reducing Red Perma-SHIELD non-stick coating, this 1/2-inch shank bit features end-relieved tips for direct plunge cutting, a 1-inch carbide height, and a 24,000 RPM maximum speed rating. Compatible with CNC automated routers, table-mounted setups, and handheld routers, this double-flute straight bit delivers smooth, splinter-free channel walls across cabinetry and joinery applications.

Best Used For:

  • Cabinet Dado & Rabbet Cutting: Milling precise 5/16-inch flat-bottom dado channels and edge rabbets for cabinet shelving and drawer joinery.
  • Deep Mortise & Blind Slot Routing: Executing clean plunge cuts and stopped mortises in solid hardwood door stiles and furniture frames.
  • CNC Sheet Goods Fluting & Trimming: Routing straight grooves and perimeter cutouts in cabinet-grade plywood, MDF, and composite panels using automated CNC equipment.

Key Performance & Safety Features

  • TiCo High-Density Micrograin Carbide: Titanium-cobalt carbide formulation maintains razor-sharp edges significantly longer than standard carbide when milling abrasive composites.
  • Red Perma-SHIELD Thermal Barrier Coating: Non-stick fluoropolymer coating insulates the bit body against heat buildup, resin accumulation, and rust corrosion.
  • End-Relieved Plunge Cutting Tips: Precision-ground bottom cutters enable smooth, vertical plunge capability for blind mortises and stopped slots.
  • Heavy-Duty 1/2-Inch Steel Shank: Provides maximum anti-flex structural stability and vibration resistance during deep mortising passes.
  • Double-Flute Shear Angle Geometry: Two precision-ground straight flutes shear wood fibers cleanly to deliver smooth channel floors and splinter-free side walls.
  • Multi-Axis Router Compatibility: Dynamically balanced for safe operation on automated CNC spindles, router tables, and handheld routers.

What's Included

  • (1) Freud 12-106T 5/16" Diameter Double Flute Straight Router Bit (1/2" Shank)

Technical Specifications

Brand Name Freud
Model Number SKU 12-106T
Product Tool Classification Double Flute Straight Grooving Router Bit
Overall Cut Diameter (D) 0.3125 in. (5/16 in.)
Shank Diameter (A) 0.500 in. (1/2 in.)
Carbide Cutting Height (h) 1.000 in. (1 in.)
Overall Bit Length (H) 2.750 in. (2-3/4 in.)
Number of Cutting Flutes 2 Straight Flutes
Maximum Rotational Speed 24,000 RPM
Plunge Cutting Capable Yes (End-Relieved Tips)
Protective Body Finish Red Perma-SHIELD Non-Stick Coating
Carbide Grade Composition TiCo High-Density Micrograin Carbide
Machine Equipment Compatibility CNC Routers, Handheld Plunge Routers, Router Tables
Target Substrates Hardwood, Softwood, Plywood, MDF, Particleboard, Wood Composites

Pro-Tip: When routing deep 1-inch mortises in dense hardwoods like red oak or maple using this 5/16-inch straight bit, make stepped passes of no more than 5/16-inch depth per cut. Stepping down incrementally allows wood chips to clear the flutes effectively, preventing frictional heat buildup and keeping the end-relieved TiCo carbide cutters sharp for clean, burn-free mortise walls.