The CMT 880.503.11 Solid Surface Rounding Over Router Bit is a precision-crafted carbide-tipped profiling bit designed specifically for creating smooth, traditional roundover edges on solid surface countertops and similar materials. With a 3/8 in. radius, 1 1/4 in. cutting diameter, and 9/16 in. cutting height, this bit delivers clean, consistent edge profiles on Corian, Wilsonart, Gibraltar, and comparable solid surface materials. Mounted on a 1/2 in. shank for stable, vibration-free performance, it is engineered for use with hand-held portable routers and is a reliable choice for countertop fabricators and woodworkers who demand accuracy on finished surfaces.

Key Features

• Solid surface edge profiling capability - purpose-built to produce a traditional roundover edge profile on solid surface countertops, giving fabricators a clean, finished look without secondary hand-sanding or additional passes.
• Non-marring Delrin bearing - the Delrin bearing guides the bit along the workpiece without scratching or damaging already-finished edges, preserving the surface quality of your countertop material throughout the cut.
• 1/2 in. shank diameter - provides a secure, stable connection in the router collet, reducing vibration and deflection during profiling cuts for smoother results and greater cutting accuracy.
• 3/8 in. radius with 1 1/4 in. cutting diameter - the geometry of this bit creates a full, well-proportioned roundover profile suited to countertop edge work, giving a classically finished appearance to solid surface applications.
• 2-flute hardmetal (HW) carbide construction - two carbide cutting edges extend tool life and maintain sharpness through demanding solid surface material, reducing the frequency of bit replacement and keeping operating costs lower over time.
• Right-hand rotation - matches the standard direction of hand-held portable routers, ensuring safe, predictable cutting behavior when used as intended.
• 2-13/32 in. total length - the overall bit length provides adequate reach and clearance for countertop edge profiling in typical hand-held router setups.

Why This Product

• Designed specifically for solid surface countertop materials - unlike general-purpose roundover bits, this bit is purpose-built for the characteristics of solid surface panels, making it the appropriate choice for fabricators working with Corian, Wilsonart, Gibraltar, and similar materials.
• The Delrin non-marring bearing protects finished countertop edges during profiling - this is critical when working on installed or pre-finished surfaces where bearing marks would require rework or refinishing.
• The 1/2 in. shank delivers enhanced rigidity compared to smaller shank sizes - this means less chatter and a more consistent edge profile across the full length of a countertop run.
• Suited for hand-held portable router use - the bit's dimensions and shank size are optimized for portable router applications, giving countertop professionals the flexibility to profile edges in place without requiring a stationary router table setup.

Specifications

• Manufacturer Part Number: 880.503.11
• Brand: CMT Orange Tools
• Diameter: 1 1/4 in.
• Cutting Height: 9/16 in.
• Total Length: 2-13/32 in.
• Radius: 3/8 in.
• Shank: 1/2 in.
• Number of Teeth: 2
• Rotation: Right-hand (RH)
• Material: HW (Hardmetal Carbide)

Approved Applications

• Solid surface countertop edge profiling
• Traditional roundover edge creation on Corian, Wilsonart, Gibraltar, and similar solid surface materials
• Hand-held portable router edge profiling work