Freud Straight Router Bit 12-106 5/16 Inch Double Flute (1/2 Inch Shank TiCo Carbide 24000 RPM Grooving Dadoes Joinery Plywood Hardwood)
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Freud 12-106 5/16 Inch Double Flute Straight Router Bit
The Freud 12-106 is a 5/16-inch overall cutting diameter double flute straight router bit engineered for precision dado slotting, finger jointing, shelf rail channel milling, and hardware mortising. Constructed with a heavy-duty 1/2-inch shank and a 1-inch carbide cutting height, this 2-cutter tool utilizes an over-shanked design that eliminates tool flex and cutter chatter in deep passes. Tipped with TiCo™ Hi-Density Micrograin Carbide, computer-balanced for low-vibration operation, and featured with Double Grind tip relief for clean plunge entries, 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:
- 5/16-Inch Shelf Rail & Channel Milling: Routing rigid 5/16-inch wide tracks, shelf standards, and spline joints without chatter marks or edge tearout.
- Finger Jointing & Box Joinery: Machining interlocking 5/16-inch finger joint pins and box corners in solid hardwood cabinet assemblies.
- Plunge Pocketing & Hardware Mortising: Diving directly into wood panels to execute clean interior pockets, lockset recesses, and blind mortise slots.
Key Performance & Safety Features
- Heavy-Duty 1/2-Inch Over-Shank: Rigid 1/2-inch shank step-up design provides superior mechanical stability and eliminates tool deflection for the 5/16-inch cutter head.
- TiCo™ Hi-Density Micrograin Carbide: Custom-formulated titanium-cobalt micrograin carbide edges resist cutting heat and maintain long edge life.
- Double Grind Plunge Cut Tip: Precision-ground end face tip relief allows 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.
- Optimized Hook & Shear Angles: Shear-angled cutting geometry slices cleanly through wood fibers to minimize chip tearout and thermal burning.
- 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 12-106 5/16" Double Flute Straight Router Bit with 1/2" Shank
Technical Specifications
| Brand Manufacturer | Freud® Tools |
| Model Part Number OEM SKU | 12-106 |
| Overall Cutting Diameter (D) | 0.312 inches (5/16" / 7.9 mm) |
| Shank Diameter (A) | 0.500 inches (1/2" / 12.7 mm) |
| Carbide Cutting Height (h) | 1.000 inch (1" / 25.4 mm) |
| Overall Tool Length (H) | 2.750 inches (2-3/4" / 69.9 mm) |
| Number of Carbide Cutters | 2 Flute Carbide Cutters |
| Cutting Style Profile | Straight / Plunge Cutting Edge |
| 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: Pairing a 5/16-inch cutter with a rigid 1/2-inch shank allows you to maintain deeper pass depths up to 5/16 inch per pass in hard timber without experiencing the cutter deflection or chatter typical of smaller shanks.
