CMT 838.992.11 Roundover Bit with Bearing by CMT is a large-radius edge profiling bit designed for router table use, delivering a clean, consistent 1" roundover profile on solid hardwood, softwood, plywood, MDF, and more. With a 2 1/2" cutting diameter, a 1 5/16" cutting height, and a 1/2" shank, this carbide-tipped router bit is built for demanding edge-shaping work in furniture making, cabinetry, and woodworking shops that require smooth, repeatable results across a variety of wood species and panel materials.

Key Features

• Hardmetal (HW) Carbide-Tipped Cutting Edges - industrial-grade carbide tips stay sharp through extended production runs, reducing downtime and replacement frequency when edge profiling hardwoods and composites.
• Ball-Bearing Guide - the integrated bearing pilots smoothly along the workpiece edge, maintaining a consistent cutting depth throughout the pass and reducing the risk of overcutting or uneven profiles.
• 2-Flute (2-Tooth) Design - dual cutting edges provide a balanced cut and a smooth surface finish, minimizing tearout on both solid wood and veneered panel materials.
• 1" Radius Profile - produces a full, sweeping roundover that softens sharp corners and creates elegant furniture-quality edges in a single pass.
• 1/2" Shank Diameter - the larger shank delivers greater stability and reduced vibration compared to smaller shank sizes, resulting in cleaner cuts and improved accuracy on a router table.
• Right-Hand Rotation - matches the standard rotation direction of router tables and handheld routers, ensuring proper cutting action and safe chip ejection.
• Fatigue-Proof Steel Body - the steel body is engineered to resist stress and flex during high-load cuts, extending the service life of the bit and supporting consistent performance over time.
• Black Bearing Washer Orientation - the bearing assembly is designed with a specific right-side-up orientation for the black bearing washer, helping prevent the bit from unscrewing during operation when correctly reassembled.
• 13 Radius Options Available in the CMT Roundover Series - part of a comprehensive lineup offering 13 different radii, giving woodworkers flexibility to match the right profile to any project without switching brands.

Why This Product

• Router table required for this size - bits with a 1" to 1 1/2" radius are specified for router table use only, making this bit the right choice for shops already equipped with a router table and looking for a full-radius edge profile on larger workpieces such as tabletops and wide furniture panels.
• Large-diameter coverage in a single pass - the 2 1/2" cutting diameter and 1 5/16" cutting height allow the full 1" roundover to be completed in one pass, saving time and reducing the need for multiple setup adjustments.
• Carbide construction for long-term value - hardmetal carbide-tipped edges hold their sharpness significantly longer than high-speed steel alternatives, meaning fewer sharpenings and more consistent edge quality across large production volumes.
• Versatile material compatibility - the bit is suited for solid hardwood, softwood, plywood, MDF, chipboard, laminates, melamine, and plastic, making it a practical all-around profiling tool for diverse shop workflows.

Specifications

• Manufacturer Part Number: 838.992.11
• Brand: CMT Orange Tools
• Bit Type: Roundover Bit with Bearing
• Cutting Diameter: 2 1/2"
• Cutting Height: 1 5/16"
• Total Length: 3 13/64"
• Radius: 1"
• Shank Diameter: 1/2"
• Number of Teeth: 2
• Rotation: Right-Hand (RH)
• Material: Hardmetal (HW) Carbide-Tipped

Approved Applications

• Rounding over edges on solid hardwood and softwood panels
• Edge profiling on furniture components such as tabletops, doors, and drawer fronts
• Softening sharp corners on plywood, MDF, and chipboard
• Decorative edge work on melamine and laminate surfaces
• Router table edge shaping operations requiring a 1" radius profile