Freud Router Bit 99-571 1/2 Inch Shank Quadra-Cut (3-1/2 Inch Raised Panel Backcutter Woodworking Cabinet Door Milling Shaping Tool)
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Freud 99-571 3-1/2" Raised Panel Router Bit with Backcutter
The Freud 99-571 3-1/2-inch raised panel router bit with backcutter shapes architectural cabinet doors and rabbets the rear panel simultaneously so solid wood panels sit flush within frames. Engineered with an exclusive Quadra-Cut four-cutter design and high-density carbide protected by a non-stick coating, this 1/2-inch shank tool operates safely up to 12,000 maximum RPM on table-mounted routers. Outfitted with precision adjustment shims that customize tongue thickness from 7/32 to 1/4 inch, it equips professional woodworkers and cabinet makers with tear-free, sand-free panel profiles.
Best Used For:
- Custom Kitchen Cabinet Door Manufacturing: Milling traditional raised panels with a 1-1/2-inch reveal for custom architectural cabinetry and interior doors.
- Flush Panel Frame Alignment: Routing an integrated backcutter rabbet on 3/4-inch solid wood door panels to align perfectly flush with standard doorframes.
- High-Precision Woodworking Shaping: Shaping decorative furniture panels in hardwoods and softwoods on table-mounted routers with zero surface tear-out.
Key Performance & Safety Features
- Integrated Backcutter Design: Simultaneously shapes the front profile and rabbets the rear panel for a flawless flush fit with standard 3/4-inch frames.
- Quadra-Cut Four-Cutter System: Two upward-shearing and two downward-shearing flutes eliminate grain tear-out and reduce secondary sanding time.
- Adjustable Tongue Shims: Includes precision shims to customize tongue thickness from 7/32 to 1/4 inch for a secure, rattle-free fit in stiles and rails.
- Perma-SHIELD Non-Stick Coating: Protective coating shields the cutting edges against heat buildup, pitch adhesion, and friction wear.
- Table-Mounted Safety Routing: Engineered specifically for secure table-mounted routers with a sturdy fence operating up to 12,000 maximum RPM.
What's Included
- (1) Freud 3-1/2-Inch Raised Panel Router Bit with Backcutter (99-571)
- (1) Set of Tongue Thickness Adjustment Shims
Technical Specifications
| Manufacturer | Freud America Inc. (Bosch Group) |
| Model Number | 99-571 |
| Product Classification | Raised Panel Router Bit with Backcutter |
| Overall Bit Diameter | 3.50 inches (3-1/2 in / 88.9 mm) |
| Shank Diameter Size | 0.500 inches (1/2 in / 12.7 mm) |
| Overall Bit Length | 3.00 inches (3 in / 76.2 mm) |
| Carbide Cutting Height | 1.00 inch (25.4 mm) |
| Profile Large Radius | 1.188 inches (1-3/16 in / 30.16 mm) |
| Profile Small Radius | 0.156 inches (5/32 in / 3.97 mm) |
| Number of Flute Cutters | 4-Cutter Quadra-Cut Design |
| Adjustable Tongue Range | 0.219 to 0.250 inches (7/32" to 1/4") |
| Maximum Rotational Speed | 12,000 RPM |
| Coating Technology | Perma-SHIELD Non-Stick Finish |
| Compatible Tool Platforms | Table-Mounted Routers with Fence Only |
Pro-Tip: Due to the large 3-1/2-inch diameter of the Freud 99-571 bit, always take multiple shallow passes rather than attempting full-depth removal in a single pass; this protects your router motor, prevents burning on hardwood panels, and ensures an immaculate profile finish.
