CMT 880.562.11 Solid Surface Sink and Trim Router Bits with Insert Knives are purpose-built for trimming sink cut-outs flush with the bowl on countertops made from Corian, Wilsonart, Gibraltar, and similar solid surface materials. Featuring a 10 deg. angled cutting profile and Delrin bearings tapered to match the slope of a sink bowl's side, these bits work as a two-pass system - a first pass with the over-hang bit cleans the cut-out edge, and a second pass with the flush-trim bit completes the operation to a clean, professional finish. Super micrograin carbide insert knives deliver extended cutting life across demanding solid surface routing applications.

Key Features

• Insert knife design with super micrograin carbide - replaceable knives made from super micrograin carbide material deliver guaranteed longer tool life, reducing the need for full bit replacement over time.
• 10 deg. angled cutting geometry - the angled profile is engineered specifically for sink bowl trimming, allowing the bit to follow the natural slope of a bowl's side for a precise, flush result.
• Tapered Delrin bearing - the bearing matches the slope of the sink bowl's side, guiding the cut accurately along the contour and keeping the cut-out flush with the countertop surface.
• Two-pass system compatibility (over-hang and flush-trim) - designed to work in sequence: the first pass removes excess material and leaves a controlled over-hang, while the second pass completes the flush trim, resulting in a clean countertop edge around the sink opening.
• 7/8 in. cutting diameter with a 1/2 in. shank - the 1/2 in. shank provides secure seating in handheld routers and router tables, while the 7/8 in. diameter suits the geometry needed for solid surface sink trim work.
• Right-hand rotation - standard RH rotation is compatible with the vast majority of routers used in countertop fabrication and shop environments.
• 2-flute configuration - dual cutting edges help balance the cut and contribute to a smooth finish on solid surface materials.

Why This Product

• Designed specifically for sink cut-out trimming in solid surface countertop work, this bit system solves the challenge of achieving a flush, clean edge around the bowl opening without damaging the material or leaving an uneven reveal.
• The tapered Delrin bearing follows the contoured slope of the sink bowl directly, meaning the user does not need to manually gauge depth or alignment - the bearing does the guiding work for accurate, repeatable results.
• Super micrograin carbide insert knives extend usable tool life and allow knife replacement rather than full bit replacement, which is a practical advantage for fabricators doing repeated solid surface sink installations.
• With a 1/2 in. shank and right-hand rotation, this bit is ready for use in standard router setups - handheld routers, router tables, and CNC machines - without requiring specialized tooling or adapters.

Specifications

• Manufacturer Part Number: 880.562.11
• Brand: CMT Orange Tools
• Angle: 10 deg.
• Diameter: 7/8 in.
• Cutting Height: 1 3/16 in.
• Total Length: 3 1/4 in.
• Shank: 1/2 in.
• Number of Teeth: 2
• Rotation: Right-hand (RH)
• Material: HW (Hardmetal / Carbide)

Approved Applications

• Solid surface countertop sink cut-out trimming
• Flush trimming sink bowl openings in Corian, Wilsonart, Gibraltar, and similar solid surface materials
• Over-hang bit first-pass cleaning of cut-out edges
• Flush-trim bit second-pass completion of sink mounting operations