CMT Roundover Bit with Bearing - 1 1/2" Diameter, 1/2" Radius, 1/2" Shank is a precision carbide-tipped edge-profiling router bit designed to cut smooth, consistent radius roundovers on solid hardwood, softwood, plywood, MDF, and other sheet materials. Built from fatigue-proof steel with a 2-flute cutting configuration and a 1/2" shank, this bit is engineered for use on a router table - making it a reliable choice for furniture edge work, decorative edge profiling, and softening sharp corners with repeatable accuracy.

Key Features

• Carbide-Tipped (HW) Cutting Edges - hard carbide tips stay sharper longer than high-speed steel alternatives, reducing the frequency of resharpening during demanding edge-profiling sessions.
• Fatigue-Proof Steel Body - the bit body resists stress fractures and material fatigue during prolonged routing operations, contributing to a longer service life and safer cutting performance.
• 1/2" Radius Profile - produces a generous, smooth roundover edge that works beautifully on furniture tops, cabinet doors, and decorative trim applications where a bold but refined profile is desired.
• Ball-Bearing Guide - the integrated bearing pilots along the workpiece edge to maintain a consistent depth of cut, eliminating the need for a fence when edge routing and helping prevent unwanted tear-out.
• 2-Flute (2-Tooth) Design - dual cutting edges deliver balanced material removal and a smooth finish on each pass, reducing sanding time after routing.
• Right-Hand Rotation - compatible with standard right-hand rotation routers and router tables, ensuring straightforward setup without special equipment.
• 1/2" Shank Diameter - the full 1/2" shank provides maximum grip in the collet, reducing vibration and bit deflection for cleaner, more accurate edge profiles.
• Router Table Use Required for This Radius - bits featuring a radius from 1" to 1 1/2" are designed specifically for router table use, which provides the stability and control needed for safe operation with larger-diameter bits.

Why This Product

• Generous 1/2" radius on a large-diameter bit - at 1 1/2" cutting diameter and a full 1/2" radius, this bit profiles a bold roundover in a single pass on a router table, saving time compared to multiple lighter passes with a smaller bit.
• Bearing-guided precision without a fence - the integrated ball bearing allows freehand edge routing along curved or straight workpieces, making this bit especially practical for shaped furniture components and irregular edges.
• Versatile material compatibility - the carbide-tipped cutting edges handle a wide range of materials including solid hardwood, softwood, plywood, MDF, chipboard, laminates, melamine, and plastic, making this a single-bit solution for diverse shop projects.
• Broad radius selection within the CMT roundover lineup - with 13 different radii available across the CMT roundover bit family, this 1/2" radius bit fits into a coordinated system that allows woodworkers to match profiles across multiple projects using compatible tooling.

Specifications

• Manufacturer Part Number: 838.880.11
• Brand: CMT Orange Tools
• Cutting Diameter: 1 1/2"
• Cutting Height: 3/4"
• Total Length: 2-41/64"
• Radius: 1/2"
• Shank Diameter: 1/2"
• Number of Teeth (Flutes): 2
• Material: Carbide-Tipped (HW)
• Rotation: Right-Hand (RH)
• Bit Type: Roundover Bit with Bearing

Approved Applications

• Rounding over edges on solid hardwood and softwood
• Edge profiling on plywood, MDF, and chipboard panels
• Decorative edge work on furniture tops, cabinet doors, and trim
• Softening sharp corners on laminate, melamine, and plastic workpieces
• Router table edge profiling with bearing-guided depth control