About this product
Precision Freud 3/4 Inch Top Bearing Ogee Fillet Groove Router Bit 39-522 with 1/4 Inch Shank
The Freud 39-522 3/4-Inch Diameter Top Bearing Ogee Fillet Groove Router Bit operates as an industrial-grade pattern-routing and surface-grooving tool engineered to execute a symmetrical 1/8-inch radius ogee profile with a flat-bottom fillet step on solid hardwoods, softwoods, cabinet plywood, and wood composites. Manufactured with micrograin TiCo High-Density Carbide cutters coated in friction-reducing Red Perma-SHIELD non-stick finish, this 1/4-inch shank bit features a top-mounted pilot ball bearing, a 1/2-inch carbide height, and a 24,000 RPM maximum speed rating. Compatible with handheld portable routers and router table setups, this shank-bearing template bit follows top-mounted patterns accurately to simulate raised panel door construction across cabinet panels, drawer fronts, and decorative architectural millwork.
Best Used For:
- Top-Template Cabinet Panel Grooving: Tracing top-mounted wooden templates with the shank bearing to plunge-rout simulated raised-panel ogee channels across flat cabinet doors.
- Guided Surface & Edge Mold Milling: Running along straightedge guides or router table fences to profile classical ovolo border moldings on display plaques and furniture panels.
- Pattern-Guided Millwork Detailing: Executing high-speed surface template fluting and decorative channel cuts across cabinet plywood and MDF stock.
Key Performance & Safety Features
- Shank-Mounted Top Pilot Ball Bearing: Top-mounted guide bearing follows templates placed on top of the workpiece for unobstructed pattern vision during plunge cuts.
- TiCo High-Density Micrograin Carbide: Proprietary titanium-cobalt carbide formulation maintains razor-sharp edges up to four times longer than standard carbide.
- Red Perma-SHIELD Thermal Barrier Coating: Non-stick fluoropolymer coating insulates the bit body against heat buildup, pitch accumulation, and rust corrosion.
- Precision Plunge-Capable Flute Design: Dual carbide cutters allow smooth center plunging and continuous surface grooving without chatter or bottom-corner burning.
- High-Speed 24,000 RPM Rating: Computer-balanced bit body maintains rotational stability and chatter-free operation at maximum router speeds.
- Universal 1/4-Inch Shank Profile: Fits standard 1/4-inch collet assemblies across compact palm trimmers, handheld plunge routers, and router tables.
What's Included
- (1) Freud 39-522 3/4" Diameter Top Bearing Ogee Fillet Groove Router Bit (1/4" Shank)
- (1) Pre-Installed Top-Mounted Pilot Ball Bearing Assembly
Technical Specifications
Brand Name Freud Model Number SKU 39-522 Product Tool Classification Top Bearing Ogee Fillet Groove Router Bit Overall Cut Diameter (D) 0.750 in. (3/4 in.) Shank Diameter (A) 0.250 in. (1/4 in.) Carbide Cutting Height (h) 0.500 in. (1/2 in.) Overall Bit Length (H) 2.1875 in. (2-3/16 in.) Profile Radiused Curve (R) 0.125 in. (1/8 in.) Minor Diameter (n) 0.250 in. (1/4 in.) Minor Height Measurement (m) 0.15625 in. (5/32 in.) Pilot Ball Bearing Position Top-Mounted Shank Bearing Number of Cutting Flutes 2 Precision Carbide Wings Maximum Rotational Speed 24,000 RPM (Speed Adjustment Required) Protective Body Finish Red Perma-SHIELD Non-Stick Coating Carbide Grade Composition TiCo High-Density Micrograin Carbide Machine Equipment Compatibility Handheld Plunge Routers and Router Tables with 1/4" ColletPro-Tip: When using top-bearing ogee fillet bits with template guides, secure your template to the workpiece using double-sided woodworking tape. Ensure the template stock is thick enough for the top bearing to ride against full bearing height without contacting the router collet nut or bottoming out prematurely.
Description supplied by 1 Top Tools through its current Shopify listing. Product, performance, and health claims are the seller’s and have not been independently verified by StorkScout.






