The CMT 838.996.11 Roundover Bit with Bearing is a large-radius edge profiling router bit engineered for router table use, delivering a smooth, consistent 1-1/2 in. radius roundover profile on wood edges and panels. With a 3-1/2 in. cutting diameter, a 1-3/4 in. cutting height, and a 1/2 in. shank, this 2-flute carbide-tipped bit is built from fatigue-proof steel to handle repeated, heavy-duty edge shaping on solid hardwood, softwood, plywood, MDF, and more. The integrated ball-bearing guide pilots precisely along the workpiece edge, ensuring repeatable depth and a clean, flowing profile on furniture faces, tabletops, cabinet doors, and large-scale millwork.

Key Features

• 1-1/2 in. Radius Roundover Profile - produces a large, sweeping curved edge that softens sharp corners and adds a polished, furniture-grade finish to wide panels and tabletop edges.
• 3-1/2 in. Cutting Diameter x 1-3/4 in. Cutting Height - covers a generous edge profile in a single pass, reducing the number of setup changes needed on large workpieces.
• 2-Flute Carbide-Tipped (HW) Cutting Edges - hard carbide tips stay sharp longer than high-speed steel alternatives, maintaining clean cuts through dense hardwoods and engineered sheet goods over extended use.
• Fatigue-Proof Steel Body - the bit body resists stress fractures and flexing during high-load cuts, contributing to safer operation and a longer service life on the router table.
• Integrated Ball-Bearing Guide - the bearing rolls smoothly along the workpiece edge without marring the surface, providing consistent cutting depth and eliminating the need for a fence on straight edges.
• Right-Hand (RH) Rotation - matches the standard rotation direction of virtually all router tables, ensuring correct chip ejection and predictable cutting behavior.
• 1/2 in. Shank - the larger shank diameter reduces vibration and chatter compared to 1/4 in. shank bits, resulting in a smoother surface finish and more accurate profiles.
• Router Table Required for This Radius Range - bits with a radius from 1 in. to 1-1/2 in. are designed specifically for router table use, giving you a stable, controlled setup for safe handling of this large-diameter bit.
• Black Bearing Washer Orientation - the washer must be kept right-side up during reassembly to match bearing rotation, preventing the bit from unscrewing during operation and maintaining assembly integrity.

Why This Product

• When a project calls for a bold, decorative 1-1/2 in. radius roundover - such as on a dining table edge or a wide cabinet face frame - this bit delivers the full profile in one steady router table pass, saving setup time and producing consistent results across multiple workpieces.
• The carbide-tipped, fatigue-proof steel construction means the bit holds its edge through repeated cuts in hardwood and engineered materials, reducing the frequency of bit replacement on high-volume work.
• With 13 different radii available across the CMT roundover bit lineup, this 1-1/2 in. option sits at the largest end of the range, making it the right choice when a subtle roundover will not do and a prominent, furniture-grade curve is the design goal.
• The integrated bearing guide removes the guesswork from edge depth control, letting you focus on feed rate and workpiece positioning rather than fence adjustments, which is especially valuable when profiling curved or irregular edges.

Specifications

• Manufacturer Part Number: 838.996.11
• Diameter: 3-1/2 in.
• Cutting Height: 1-3/4 in.
• Total Length: 3-41/64 in.
• Radius: 1-1/2 in.
• Shank: 1/2 in.
• Number of Teeth (Flutes): 2
• Blade Material: Carbide-Tipped (HW)
• Rotation: Right-Hand (RH)
• Brand: CMT Orange Tools

Approved Applications

• Large-radius roundover edge profiling on solid wood furniture
• Rounding and softening edges on tabletops and wide panels
• Decorative edge work on cabinet doors and face frames
• Edge shaping on plywood, MDF, chipboard, and engineered wood composites
• Router table profiling of straight and curved workpiece edges