The CMT 838.222.11 Roundover Bit with Bearing is a precision-crafted carbide-tipped router bit designed to produce a clean, consistent 3/16" radius edge profile on wood, sheet goods, and other common workshop materials. Built on a 1/4" shank and featuring a 7/8" cutting diameter with a 1/2" cutting height, this right-hand rotation bit is ideal for softening sharp corners, decorating furniture edges, and finishing workpiece profiles with a smooth, repeatable arc. The integrated ball-bearing guide rides along the stock edge to maintain consistent depth throughout the cut, eliminating guesswork and reducing setup time.

Key Features

• 3/16" Roundover Radius - produces a refined, moderately curved edge profile well-suited for furniture, cabinetry, and general woodworking edge work, giving finished pieces a polished, professional appearance.
• Carbide-Tipped Cutting Edges (HW Material) - industrial-grade carbide tips retain sharpness longer than high-speed steel, reducing the frequency of resharpening and keeping edges cleaner across more passes.
• Fatigue-Proof Steel Body - the bit body is manufactured from fatigue-proof steel, which resists stress fractures under repeated high-speed use and contributes to a longer, safer service life.
• Integrated Ball-Bearing Guide - the 1/2" diameter bearing pilots smoothly along the workpiece edge, maintaining consistent cut depth without the need for a fence, making freehand routing more accurate and controlled.
• 2-Flute Cutting Configuration - two carbide-tipped cutting edges deliver a balanced, smooth cut with reduced vibration, improving surface finish quality on the routed profile.
• 1/4" Shank Diameter - compatible with a wide range of compact routers and trim routers, making this bit a versatile addition to any shop with standard 1/4" collet tooling.
• Right-Hand Rotation - designed for standard right-hand router operation, ensuring correct chip ejection direction and stable cutting performance in handheld and table-mounted routers.
• Black Bearing Washer (Directional Assembly) - the bearing assembly is designed with a directional washer that must be kept right-side up during reassembly to prevent the bit from unscrewing during use - a safety-oriented design detail that protects both the tool and the operator.

Why This Product

• Versatile fit for compact and mid-size routers - the 1/4" shank makes this bit compatible with trim routers and compact routers commonly found in home workshops and job sites, so you do not need a large, heavy router to achieve a clean decorative edge profile.
• Clean decorative profiles with minimal setup - the integrated ball-bearing pilot eliminates the need to set up a fence for edge routing, letting you follow curved or straight edges with consistent results right out of the box.
• Long-lasting carbide cutting edges on a fatigue-proof steel body - the combination of HW carbide tips and fatigue-proof steel construction means fewer tool changes and more consistent cut quality over the life of the bit, even in demanding hardwood applications.
• Works across a wide range of materials - this roundover bit is suited for solid hardwood, softwood, plywood, MDF, chipboard, laminates, melamine, and plastics, giving it broad utility across furniture, cabinetry, and general shop work.

Specifications

• Manufacturer Part Number: 838.222.11
• Brand: CMT Orange Tools
• Diameter: 7/8"
• Cutting Height: 1/2"
• Total Length: 2 1/8"
• Radius: 3/16"
• Shank: 1/4"
• Number of Teeth: 2
• Rotation: Right-Hand (RH)
• Material: Carbide-Tipped (HW)

Approved Applications

• Rounding over and softening sharp workpiece edges
• Decorative edge profiling on furniture and cabinetry
• Edge finishing on solid hardwood and softwood
• Profile routing on plywood, MDF, chipboard, melamine, and laminate panels
• Edge work on plastic sheet materials
• Handheld router edge profiling
• Router table edge profiling (smaller radii such as this 3/16" bit are well-suited for both handheld and table use)