The CMT Contractor Round Nose Bit is a precision carbide-tipped routing bit engineered for professional sign makers, cabinet makers, and woodworkers who demand clean, consistent semi-circular coves and decorative grooves. With a 1/4 in. cutting diameter, 3/8 in. cutting height, and 1/4 in. shank, this compact round nose bit is purpose-built for fluting, veining, decorative door and drawer front profiling, and creative sign work in solid wood and wood-based panel products. The two carbide-tipped cutting edges deliver smooth, controlled cuts across a wide range of wood materials, making it a reliable choice for both handheld router use and router table setups.

Key Features

• Two carbide-tipped cutting edges - dual flute geometry produces a smooth, clean finish in a single pass through wood and wood products, reducing the need for sanding or secondary cleanup.
• 1/8 in. radius profile - creates a consistent semi-circular cove that is ideal for decorative fluting, veining channels, and sign lettering grooves with repeatable accuracy.
• 1/4 in. shank diameter - fits standard 1/4 in. router collets found on most compact and full-size handheld routers and router tables, offering broad machine compatibility.
• 1/4 in. cutting diameter x 3/8 in. cutting height - proportioned for detail work on decorative doors, drawer fronts, and creative woodworking projects where precision groove depth matters.
• Right-hand rotation - standard RH rotation ensures compatibility with virtually all conventional routers without special setup or adjustment.
• HW (carbide) material construction - industrial-grade carbide maintains a sharp cutting edge longer than high-speed steel alternatives, extending tool life and reducing replacement frequency.

Why This Product

• Specifically designed for professional sign and cabinet makers who need a dependable round nose bit that produces smooth, decorative coves in solid hardwood, softwood, and wood composites without tear-out.
• The 1/4 in. shank makes this bit accessible to woodworkers using compact trim routers as well as full-size router table setups - a single bit that works across multiple tools in the shop.
• With a 1/8 in. radius and 3/8 in. cutting height, this round nose bit is sized for fine detail routing applications like fluting columns, veining decorative panels, and adding grooved accents to furniture components.
• Two carbide-tipped cutting edges mean this bit is built for production-level use, sustaining cut quality over repeated passes through wood and wood products rather than dulling quickly like lesser alternatives.

Specifications

• Manufacturer Part Number: 81410
• Brand: CMT Orange Tools
• Cutting Diameter: 1/4 in.
• Cutting Height: 3/8 in.
• Total Length: 1 9/16 in.
• Radius: 1/4 in.
• Shank Diameter: 1/4 in.
• Number of Cutting Edges: 2
• Blade Material: Carbide-Tipped (HW)
• Rotation: Right-Hand (RH)
• Bit Type: Round Nose (Core Box)

Approved Applications

• Decorative cove routing in solid hardwood and softwood
• Fluting columns, pilasters, and furniture components
• Veining and groove detail work on cabinet doors and drawer fronts
• Sign making and lettering channel routing
• Decorative accent grooves on creative woodworking projects
• Routing in plywood, MDF, and other wood-based panel products