The CMT 838.167.11 Roundover Bit with Bearing is a precision carbide-tipped router bit designed to produce a smooth, consistent 5/64" radius edge profile on a wide range of wood and composite materials. Built from fatigue-proof steel with a 1/4" shank, this right-hand rotation bit is equally at home in a handheld router or mounted in a router table, making it a versatile choice for furniture makers, cabinetmakers, and woodworkers who need repeatable, clean edge softening and decorative profiling results.

Key Features

• 5/64" Radius Roundover Profile - produces a delicate, refined edge curve that softens sharp corners without removing too much material, ideal for fine furniture and detail work.
• Ball-Bearing Pilot Guide - the bearing rolls along the workpiece edge to maintain a consistent cutting depth throughout the pass, reducing the chance of uneven profiles or over-cutting.
• Carbide-Tipped Cutting Edges (HW Material) - hard carbide tips stay sharp through extended use on hardwood, softwood, plywood, MDF, laminates, and plastics, reducing the frequency of bit changes.
• Fatigue-Proof Steel Body - the bit body resists stress and flexing during prolonged routing sessions, supporting safer, more stable operation at cutting speeds.
• 2-Flute (2-Tooth) Design - two cutting edges balance chip removal and surface finish quality, leaving smooth, clean profiles that require minimal sanding.
• Right-Hand Rotation - standard RH rotation is compatible with the vast majority of handheld routers and router tables, making this bit easy to install and use without specialized equipment.
• 1/4" Shank Diameter - fits any router collet sized for 1/4" shanks, giving this bit broad compatibility across compact and full-size router models.
• 21/32" Overall Diameter - a compact cutting diameter suited for edge work on panels, frames, and components where control and precision matter most.

Why This Product

• Precise radius for detail work - the 5/64" radius is one of CMT's smaller roundover options, making this bit especially well-suited for delicate edge treatments on furniture components, small panels, and trim pieces where a subtle, refined curve is preferred over a bold profile.
• Bearing-guided consistency - because the pilot bearing follows the workpiece edge automatically, you get a uniform, repeatable profile on every pass without relying on fences or guides, saving setup time and reducing waste from inconsistent cuts.
• Works with laminates and a broad material range - CMT specifically recommends small-radius roundover bits for finishing laminates, noting that the profile virtually eliminates the filing typically required with conventional trim bits, making this bit a practical upgrade for laminate edge finishing.
• Practical decorative versatility - the smaller bearing on CMT roundover bits creates a delicate inset at the base of the cut, giving woodworkers an additional decorative detail option beyond a plain rounded edge, adding value without requiring a separate bit.

Specifications

• Manufacturer Part Number: 838.167.11
• Brand: CMT Orange Tools
• Diameter: 21/32"
• Cutting Height: 1/2"
• Total Length: 2-9/64"
• Radius: 5/64"
• Shank: 1/4"
• Number of Teeth: 2
• Rotation: Right-Hand (RH)
• Material: Carbide-Tipped (HW)

Approved Applications

• Rounding over edges on solid hardwood and softwood
• Softening sharp corners on plywood, MDF, and chipboard panels
• Decorative edge profiling on furniture components and frames
• Finishing laminate edges - virtually eliminates filing required with conventional trim bits
• Edge work on plastics and melamine surfaces
• Handheld router edge profiling
• Router table edge profiling