The CMT 880.502.11 Solid Surface Rounding Over Bit is a precision router bit engineered specifically for creating smooth, traditional roundover edges on solid surface countertops. With a 1/4 in. radius, a 1 in. cutting diameter, and a 1/2 in. cutting height, this hardwood carbide (HW) bit delivers clean, consistent profiles on solid surface materials such as Corian, Wilsonart, Gibraltar, and comparable countertop substrates. Fitted with a non-marring Delrin bearing, it protects finished surfaces during edge profiling, making it a reliable choice for countertop fabricators and cabinetry professionals who demand accuracy without surface damage.

Key Features

• Solid Surface Rounding Over Design - purpose-built to produce a traditional 1/4 in. roundover edge profile on solid surface countertops, delivering repeatable, professional results on every pass.
• Non-Marring Delrin Bearing - the Delrin bearing rides along finished edges without scratching or marking the workpiece surface, preserving the appearance of completed solid surface countertop edges.
• Hardwood Carbide (HW) Cutting Material - HW carbide construction maintains a sharp cutting edge through extended use on solid surface materials, reducing the frequency of bit changes and keeping profiling work on schedule.
• 2-Flute Configuration - dual cutting teeth provide a balanced cut with excellent chip clearance, contributing to a smoother finished edge and reducing heat buildup during profiling.
• 1/2 in. Shank - the full 1/2 in. shank diameter provides a secure, stable connection in compatible router collets, minimizing vibration and improving edge consistency throughout the cut.
• Right-Hand Rotation - standard right-hand (RH) rotation is compatible with conventional handheld portable routers, making this bit straightforward to install and use with common workshop equipment.
• For Use on Hand-Held Portable Routers - designed for handheld portable router applications, giving fabricators flexibility to bring the tool to the workpiece for countertop edge profiling work.

Why This Product

• The Delrin non-marring bearing is specifically selected for solid surface work - where protecting the finished countertop edge is critical - so fabricators can guide the bit confidently without risking scratches or marks on completed surfaces.
• With a 1 in. cutting diameter and 1/2 in. cutting height, this bit handles a solid roundover profile in a single pass, reducing setup time and the need for multiple passes when shaping solid surface countertop edges.
• The hardwood carbide cutting material is matched to the demands of solid surface materials like Corian and Wilsonart, maintaining sharpness and profile accuracy through repeated use in countertop fabrication environments.
• The 2 fl. carbide configuration combined with the 1/2 in. shank reduces vibration and chatter during edge profiling, helping operators achieve a cleaner finished roundover edge with less sanding or correction needed afterward.

Specifications

• Manufacturer Part Number: 880.502.11
• Brand: CMT Orange Tools
• Diameter: 1 in.
• Cutting Height: 1/2 in.
• Total Length: 2-11/32 in.
• Radius: 1/4 in.
• Shank: 1/2 in.
• Number of Teeth: 2
• Material: HW (Hardwood Carbide)
• Rotation: Right-Hand (RH)

Approved Applications

• Solid surface countertop edge profiling
• Traditional roundover edge creation on solid surface materials
• Rounding over edges on Corian, Wilsonart, Gibraltar, and comparable solid surface substrates