The CMT Solid Carbide Round Nose Bit - 1/4" Diameter, 1/8" Radius, 1/4" Shank is a precision routing tool designed for creating smooth, semi-circular coves, decorative grooves, and fluted accents in a wide range of wood and wood-based materials. Built from solid carbide with 2 carbide-tipped flutes, this round nose (core box) bit delivers clean, consistent cuts in solid hardwood, softwood, plywood, MDF, and similar substrates - making it a go-to choice for woodworkers, cabinetmakers, and CNC operators who demand fine detail work and repeatable results.

Key Features

• Solid Carbide Construction - the entire bit is machined from solid carbide rather than carbide-tipped steel, providing superior hardness and edge retention for cleaner cuts and a longer usable life, especially in abrasive materials like MDF and composites.
• 1/8" Radius Round Nose Profile - produces a precise 1/4" wide semi-circular groove in a single pass, ideal for veining, fluting, and adding decorative motifs to doors, drawer fronts, and panels without requiring multiple setups.
• 2-Flute Design - dual cutting edges improve chip evacuation and surface finish quality, reducing sanding time and delivering smoother cove profiles compared to single-flute configurations.
• 1/4" Shank Diameter - fits standard 1/4" router collets found on handheld routers, router tables, and compact CNC machines, offering broad compatibility without adapters.
• Right-Hand Rotation (RH) - compatible with all standard right-hand rotating routers, ensuring correct feed direction and safe, controlled material removal.
• 1/2" Cutting Height - generous cutting height relative to the bit size allows fluting passes of meaningful depth, giving decorative grooves the visual presence and shadow line needed for professional results.
• 2" Total Length - a compact overall length keeps the bit rigid and minimizes deflection during routing, contributing to accurate, chatter-free profiles.

Why This Product

• Solid carbide construction - not just carbide-tipped - means the cutting edges stay sharper longer in dense or abrasive materials like MDF and hardwood, reducing the frequency of bit changes and keeping decorative routing projects on schedule.
• The 1/8" radius produces a clean, proportional groove on narrow workpieces such as drawer fronts and frame members where a larger cove bit would be impractical or oversize for the design.
• With a 1/4" shank, this bit is compatible with a wide range of router platforms including compact handheld routers, benchtop router tables, and entry-level CNC machines - making it a versatile addition to shops of any size.
• Two carbide-tipped flutes work together to produce smooth cove surfaces that require minimal finishing, saving time when applying decorative accents across multiple cabinet doors or panels in production environments.

Specifications

• Manufacturer Part Number: 814.064.11
• Brand: CMT Orange Tools
• Diameter: 1/4"
• Radius: 1/8"
• Shank: 1/4"
• Cutting Height: 1/2"
• Total Length: 2"
• Number of Teeth: 2
• Rotation: Right-Hand (RH)
• Blade Material: Solid Carbide

Approved Applications

• Routing semi-circular coves in solid wood and wood derivatives
• Fluting decorative columns, pilasters, and frame members
• Veining and fine decorative groove work on doors and drawer fronts
• Creating signature design motifs on cabinet panels and flat surfaces
• Decorative accent routing in MDF, plywood, chipboard, and similar substrates