Freud Straight Router Bit 12-138 5/8 Inch Double Flute (1/2 Inch Shank TiCo Carbide 24000 RPM CNC Grooving Dadoes Mortising Plywood Hardwood)

Freud 12-138 5/8 Inch Double Flute Straight Router Bit

The Freud 12-138 is a 5/8-inch overall cutting diameter double flute straight router bit engineered for general grooving, 5/8-inch wide dado milling, hardware mortising, and straight edge profiling. Built with a heavy-duty 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 and computer-balanced for low-vibration operation, it runs 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:

• 5/8-Inch Dado & Rabbet Milling: Machining precise 5/8-inch wide dado channels, rabbet joints, and shelf slots in cabinet stock and hardwood lumber.
• Hardware Mortising & Pocketing: Plunging directly into wood stock to route clean, flat-bottomed hardware recesses, plate pockets, and blind mortises.
• Straight Edge Profiling & Trimming: Milling square joint shoulders and smooth edge profiles across solid timber panels without surface tearing.

Key Performance & Safety Features

• TiCo™ Hi-Density Micrograin Carbide: Custom-formulated titanium-cobalt micrograin carbide edges resist heat degradation and maintain sharp cutting edges.
• Heavy-Duty 1/2-Inch Shank: Rigid 1/2-inch steel shank diameter minimizes tool flex, runout, and cutter chatter during deep routing passes.
• End-Relieved Plunge Cut Tip: Precision-ground end face geometry 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 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 12-138 5/8" Double Flute Straight Router Bit with 1/2" Shank

Technical Specifications

Pro-Tip: When routing deep 5/8-inch wide dadoes in dense hardwoods, step down pass depths to 5/16 inch per pass to facilitate proper chip evacuation and prevent thermal pitch buildup along the cutting edges.