Freud Drainboard Router Bit 85-052 1/2 Inch Shank 1/8 Radius (5/8 Dia 1/2 Carbide Height Non Marring Bearing Solid Surface Countertop Water Runoff)

High-Density 1/2 Inch Shank 1/8 Inch Radius Drainboard Router Bit for Solid Surface Fabrication

The Freud 85-052 5/8-Inch Diameter Drainboard Router Bit delivers an industrial countertop fabrication solution engineered to rout sloping water runoff grooves into solid surface materials like Corian and Avonite. Featuring high-density TiCo titanium cobalt carbide cutting flutes, this 1/2-inch shank tool operates smoothly on handheld portable routers running at speeds up to 16,000 RPM across dense composite polymers. The 5/8-inch overall diameter cutter provides a 1/2-inch carbide cutting height with a 1/8-inch radius and incorporates a non-marring synthetic guide bearing to ride along templates without scratching or thermally scarring polished countertop surfaces.

Best Used For:

• Drainboard Runoff Grooves: Routing sloping water channels adjacent to undermount kitchen sinks to direct liquid directly into the basin.
• Solid Surface Slotted Profiles: Milling easy-to-clean 1/8-inch radius rounded bottom slots across acrylic, resin, and polymer countertop slabs.
• Template-Guided Fabrication: Executing repetitive, scratch-free groove patterns using custom jig guides without marring high-gloss finishes.

Key Performance & Safety Features

• Non-Marring Synthetic Bearing: Specialized guide bearing glides smoothly along jig templates without scratching or dulling polished solid surfaces.
• 1/8 Inch Radius Flute Geometry: Forms smooth, rounded groove channels that prevent dirt accumulation and simplify countertop cleaning.
• TiCo Hi-Density Carbide: Proprietary micro-grain titanium cobalt carbide tip formulation resists premature dulling against abrasive composite resins.
• Handheld Router Optimization: Perfectly balanced 2-flute cutter configuration ensures stable, low-vibration control during manual routing operations.
• Heavy-Duty Steel Shank: Rigid 1/2-inch shank prevents tool deflection to preserve uniform groove depth across long runouts.

What's Included

• (1) Freud 85-052 5/8" Diameter Drainboard Router Bit with 1/2" Shank

Technical Specifications

Pro-Tip: Set up a inclined routing jig to taper your drainboard channels gradually toward the sink basin. Rout each pass using light, continuous feeds to prevent resin melting and ensure a pristine, burn-free surface finish that requires minimal hand sanding.