CMT Round Nose Bit - 1/2 in. Diameter, 1/4 in. Radius, 1/4 in. Shank by CMT is a precision-ground carbide-tipped routing bit designed to cut smooth, semi-circular coves, decorative grooves, and fluted channels in wood and wood derivatives. Whether you are personalizing door panels, drawer fronts, or cabinetry surfaces with veining and signature motifs, this round nose (core box) bit delivers clean, consistent results. With a right-hand rotation and a 2-flute carbide-tipped design, it is compatible with handheld routers, router tables, and CNC routing machines.

Key Features

• 1/2 in. cutting diameter with 1/4 in. radius profile - produces a true semi-circular cove in a single pass, giving you precise, repeatable decorative grooves without multiple setups.
• Carbide-tipped (HW) flutes - hard carbide material stays sharp longer than standard high-speed steel, reducing the frequency of bit changes and downtime on the job.
• 2-flute design - dual cutting edges share the workload evenly, producing a smoother finish on the cove floor and extending overall cutting life.
• 1/4 in. shank - fits a wide range of compact routers and standard 1/4 in. collets, making this bit accessible for both hobbyist and professional setups.
• 3/8 in. cutting height - sufficient depth for decorative fluting and veining applications without requiring multiple climb passes on most workpieces.
• 2 in. total length - provides adequate clearance above the collet for routing on flat panels and profiled surfaces without collet interference.
• Right-hand (RH) rotation - standard feed direction matches conventional router table and handheld router setups, ensuring safe and predictable cutting behavior.

Why This Product

• If you need to add repeatable, professional-quality decorative grooves or fluted accents to doors, drawer fronts, or panels, this bit's precise 1/4 in. radius profile cuts a consistent semi-circular cove every time - no sanding or secondary shaping required.
• The carbide-tipped construction means this bit holds up through solid hardwood, softwood, MDF, plywood, and other wood derivatives, making it a versatile single-tool solution for mixed-material shop work.
• The 1/4 in. shank gives this bit broad compatibility across compact trim routers and full-size router tables alike - a practical choice when working with equipment that only accepts 1/4 in. collets.
• At 2 in. total length, the bit sits securely in the collet with enough reach for decorative surface routing without excessive overhang, supporting steady, controlled cuts on flat and contoured workpieces.

Specifications

• Manufacturer Part Number: 814.127.11
• Brand: CMT Orange Tools
• Diameter: 1/2 in.
• Radius: 1/4 in.
• Shank: 1/4 in.
• Cutting Height: 3/8 in.
• Total Length: 2 in.
• Number of Teeth: 2
• Material: Carbide-Tipped (HW)
• Rotation: Right-Hand (RH)

Approved Applications

• Routing semi-circular coves in solid hardwood and softwood
• Decorative grooving on door panels and drawer fronts
• Fluting on cabinet faces and furniture components
• Veining and surface motif work on MDF, plywood, and wood derivatives
• Decorative accent routing on any flat or shaped wood surface