CMT Bowl and Tray Bit with Bearing - 1 1/4" Diameter, 5/8" Cutting Height, 1/4" Radius, 1/2" Shank is a precision-ground, carbide-tipped router bit engineered by CMT for routing smooth, flat-bottomed recesses with cleanly radiused inner corners. Whether you are hollowing out a wooden serving tray, crafting a keepsake box, shaping a cutting board recess, or producing decorative panel inlays, this 2-tooth right-hand bit delivers consistent, polished results in solid hardwoods, softwoods, plywood, MDF, and a wide range of sheet goods. The integrated bearing guide makes pattern work accurate and repeatable, while the 1/2" shank ensures a secure, low-vibration grip in both handheld routers and router table setups.

Key Features

• 1 1/4" Cutting Diameter with 1/4" Corner Radius - shapes the inner radius of bowls, trays, and boxes while the sides and bottom produce a smooth, flat interior surface, eliminating the need for additional sanding passes at the corners.
• 5/8" Cutting Height - provides sufficient depth capacity for routing recesses in serving trays, storage boxes, cutting boards, and similar craft items in a single or staged pass.
• Integrated Bearing Guide - follows a template or pattern edge for accurate, repeatable cuts without layout lines, making it ideal for production runs and decorative edgework on a router table.
• 2-Flute Tungsten Carbide (HW) Construction - dual cutting edges balance feed rate and surface quality, leaving cleaner bottoms and walls in hardwood and softwood applications compared to single-flute designs.
• 1/2" Shank - the larger shank diameter reduces runout and vibration compared to 1/4" shank bits, contributing to smoother cuts and longer tool life in both router table and handheld routing applications.
• Right-Hand Rotation - compatible with all standard routers, ensuring proper chip ejection and predictable cutting behavior when routing bowl and tray profiles.
• 2-3/8" Total Length - a compact overall length keeps the bit well-supported in the collet while still providing access for typical tray and bowl routing depths.

Why This Product

• The 1/4" radius corner combined with the 5/8" cutting height addresses one of the most common challenges in tray and bowl routing: achieving a smooth, continuous transition between the flat bottom and vertical wall without chiseling or sanding sharp inside corners after the cut.
• The included bearing makes this bit a direct replacement for pattern-routing setups - simply attach a template and the bearing follows it consistently, reducing layout time and improving repeatability across multiple identical pieces such as cutting boards or box lids.
• With a 1 1/4" diameter and 1/4" radius profile, this bit is sized specifically for functional craft work - wide enough to clear material efficiently in bowls and trays, yet compact enough for decorative edgework on the router table as the source data recommends.
• The 1/2" shank is the preferred choice for router table use, providing the collet engagement and rigidity needed for steady, controlled passes when routing across the full width of a tray or bowl recess in dense hardwoods.

Specifications

• Manufacturer Part Number: 851.502.11B
• Brand: CMT Orange Tools
• Diameter: 1 1/4"
• Cutting Height: 5/8"
• Radius: 1/4"
• Shank: 1/2"
• Total Length: 2 3/8"
• Number of Teeth: 2
• Material: HW (Tungsten Carbide)
• Rotation: Right-Hand (RH)
• Bearing: Included

Approved Applications

• Routing bowls, trays, and box interiors
• Serving tray recess routing
• Cutting board recess shaping
• Specialty and craft woodworking
• Pattern routing with bearing guide and template
• Decorative edgework on a router table
• Panel inlay routing