The CMT 838.754.11 Roundover Bit with Bearing is a precision carbide-tipped router bit engineered to produce a clean, consistent 1/4" radius roundover profile on wood edges and surfaces. With a 1" cutting diameter, a 1/2" cutting height, and a 1/2" shank, this bit is sized for serious edge profiling work on solid hardwood, softwood, plywood, MDF, and similar materials. The integrated ball-bearing guide rides along the workpiece edge to maintain a uniform depth of cut throughout the pass, making it a reliable choice for furniture edge work, softening sharp corners, and decorative edge finishing. Built from fatigue-proof steel with carbide-tipped cutting edges, this right-hand rotation bit is designed to deliver repeatable results on a router table or with compatible handheld and CNC routing setups.

Key Features

• 1/4" Radius Roundover Profile - produces a smooth, consistent curved edge in a single pass, eliminating the need for additional sanding or filing on most wood species.
• Integrated Ball Bearing Guide - pilots along the workpiece edge to control cutting depth automatically, reducing the risk of overcutting and improving consistency across long runs.
• Carbide-Tipped Cutting Edges (HW Material) - hard carbide tips stay sharp longer than high-speed steel alternatives, extending the service life of the bit through demanding cuts in hardwood and composite materials.
• Fatigue-Proof Steel Body - the bit body resists stress fractures and deformation under repeated use, supporting reliable performance in production and shop environments.
• 2-Flute (2-Tooth) Geometry - dual cutting edges provide a smooth surface finish and balanced chip removal, reducing heat buildup at the cutting zone.
• 1/2" Shank Diameter - the larger shank improves stability and reduces vibration compared to 1/4" shank bits, contributing to cleaner cuts and improved bit control during operation.
• Right-Hand Rotation - standard RH rotation is compatible with the vast majority of routers and router tables, making setup straightforward without special tooling.
• 1/2" Bearing Diameter - the standard bearing size on this radius is consistent with the CMT roundover bit family, allowing predictable piloting behavior across the cutting range.
• Black Bearing Washer - orientation-sensitive design - the washer must be kept right-side up to match bearing rotation during reassembly, a detail that prevents the bit from unscrewing during use.

Why This Product

• The 1/4" radius is one of the most versatile roundover sizes for furniture and cabinet work - large enough to soften edges visually and by touch, small enough to suit a wide range of workpiece thicknesses without removing excessive material.
• Carbide-tipped construction on a fatigue-proof steel body means this bit holds up across repeated use in hardwood and MDF applications where lesser bits dull quickly or develop micro-fractures under stress.
• The bearing guide removes the guesswork from edge profiling - consistent contact with the workpiece edge means the radius depth stays uniform from the start of a cut to the end, even on long or curved stock.
• With a 1/2" shank and 2-5/16" total length, this bit fits securely in standard router collets and provides enough body length for stable, chatter-free passes on a router table or freehand setup.

Specifications

• Manufacturer Part Number: 838.754.11
• Brand: CMT Orange Tools
• Diameter: 1"
• Cutting Height: 1/2"
• Total Length: 2-5/16"
• Radius: 1/4"
• Shank: 1/2"
• Number of Teeth: 2
• Rotation: Right-Hand (RH)
• Material: HW (Carbide-Tipped)

Approved Applications

• Rounding over workpiece edges on solid hardwood and softwood
• Softening sharp corners on furniture panels, cabinet doors, and tabletops
• Decorative edge profiling on plywood, MDF, and chipboard
• Edge work on laminates and melamine surfaces
• Router table edge profiling passes
• Handheld router edge shaping with bearing-guided control
• CNC routing machine edge profile operations