CMT Round Nose Bit with Bearing - 5/8 in. Diameter, 5/16 in. Radius, 1/4 in. Shank by CMT is a precision carbide-tipped routing bit designed to cut smooth, semi-circular coves, decorative grooves, and fluted accents in wood and wood derivative materials. Whether you are personalizing door panels, drawer fronts, or decorative surfaces, this round nose (core box) bit delivers clean, repeatable results in solid hardwood, softwood, MDF, and similar materials. The included bearing guide keeps cuts consistent and controlled, making this bit well-suited for handheld routers and router table use alike.

Key Features

• Carbide-Tipped (HW) Cutting Flutes - Hard carbide tips maintain a sharp cutting edge through demanding routing sessions, reducing the need for frequent resharpening and extending the usable life of the bit in both hardwood and wood composites.
• Bearing Guide Included - The integrated bearing runs along the workpiece edge or a template, keeping the bit on a consistent path without additional fences or guides - improving accuracy and reducing setup time.
• 5/16 in. Radius Semi-Circular Profile - Produces a 5/8 in. wide cove in a single pass, ideal for fluting, veining, and decorative groove work on doors, drawer fronts, and panels.
• 2-Flute (2-Tooth) Design - Two cutting edges work together to produce a smoother surface finish compared to single-flute alternatives, reducing sanding time after routing.
• Right-Hand Rotation - Compatible with all standard router spindles, ensuring straightforward installation with no additional adapters or modifications required.
• 1/4 in. Shank - Fits the most common compact and trim router collets, giving woodworkers and hobbyists access to precision decorative routing without needing a large router.
• 2 in. Total Length - A practical overall length that balances reach into workpieces with stability in the collet, minimizing vibration during decorative cuts.

Why This Product

• The 5/16 in. radius profile and bearing guide combination lets you rout consistent decorative coves along edges or inside panels without relying on freehand technique - making it a reliable choice for repetitive production work on doors and drawer fronts.
• The 1/4 in. shank fits trim and compact routers that are widely used for detail and decorative work, so you get a purpose-matched bit that pairs naturally with the tools most woodworkers already own for this type of task.
• Carbide-tipped construction (HW material) means the bit holds up through multiple passes in hardwood and MDF alike, giving you a longer-lasting tool compared to high-speed steel alternatives for decorative groove routing.
• With a 3/8 in. cutting height and a clean round nose profile, this bit is well-suited for creating signature motifs, fluted columns, veining details, and other decorative accents that add visual character to furniture and cabinetry.

Specifications

• Manufacturer Part Number: 814.160.11B
• Brand: CMT Orange Tools
• Diameter: 5/8 in.
• Radius: 5/16 in.
• Shank: 1/4 in.
• Cutting Height: 3/8 in.
• Total Length: 2 in.
• Number of Teeth: 2
• Blade Material: Carbide-Tipped (HW)
• Rotation: Right-Hand (RH)

Approved Applications

• Routing semi-circular coves in solid hardwood and softwood
• Decorative groove routing on door panels and drawer fronts
• Fluting and veining on furniture and cabinetry surfaces
• Creating signature motifs and decorative accents on wood derivatives including MDF
• Edge profiling with bearing-guided template routing