The CMT 880.571.11 Solid Surface Sink and Trim Router Bit is a precision-engineered routing solution designed specifically for trimming sink cut-outs flush with the bowl in solid surface countertop applications. Built from super micrograin carbide for extended cutting life, this 3/4" diameter, 1" cutting height bit features a tapered Delrin bearing that matches the slope of the bowl's side - making it an essential tool for clean, professional results when working with Corian, Wilsonart, Gibraltar, and comparable solid surface materials. Whether used on a handheld router or a router table, this right-hand rotation bit delivers the control and precision that countertop fabricators and installers demand.

Key Features

• Tapered Delrin bearing matched to bowl slope - the bearing profile mirrors the angled side of the sink bowl, allowing the bit to guide accurately along the contour and produce a flush, seamless trim without guesswork or manual adjustment.
• Super micrograin carbide construction (HW material grade) - a denser, finer carbide composition compared to standard grades means the cutting edges stay sharper longer, reducing the frequency of bit changes during solid surface countertop projects.
• Two-flute (2-tooth) cutting geometry - dual flutes provide a balance of material removal rate and surface finish quality, making each pass through solid surface material smoother and more controlled.
• 1/2" shank diameter - a full-size 1/2" shank seats securely in the router collet, minimizing vibration and flex during the cut, which is critical for achieving precise flush trim results on finished countertop surfaces.
• Right-hand (RH) rotation - standard right-hand rotation is compatible with the vast majority of handheld routers and router tables, so no special setup or machine modification is needed.
• 3 1/16" total length - the overall length provides enough clearance to position the bit properly above and below the countertop surface during both the over-hang and flush trim passes.
• Designed for a two-pass sink trimming process - the first pass cleans the cut-out edge and leaves a controlled slight over-hang on the underside of the counter; the second flush-trim pass completes the operation for a finished, professional edge, reducing the risk of tearout or an uneven reveal.

Why This Product

• Trimming a sink cut-out flush to a solid surface bowl requires a bearing that actually follows the bowl's sloped side - the tapered Delrin bearing on this bit is purpose-built for that geometry, removing the guesswork that flat-bearing trim bits introduce on angled bowl walls.
• The two-pass system built into the design (over-hang pass followed by flush-trim pass) breaks the operation into controlled stages, reducing the chance of chipping or over-cutting on expensive solid surface countertop material.
• Super micrograin carbide provides a guaranteed longer cutting life compared to standard carbide, meaning fabricators get more sink installations per bit before a replacement is needed - a direct cost and time savings on the job.
• With a 1/2" shank and right-hand rotation, this bit is ready to run in standard router setups without adapters or special tooling, making it practical for both shop fabrication environments and on-site countertop installation work.

Specifications

• Manufacturer Part Number: 880.571.11
• Brand: CMT Orange Tools
• Diameter: 3/4"
• Cutting Height: 1"
• Total Length: 3 1/16"
• Shank: 1/2"
• Number of Teeth: 2
• Rotation: Right-hand (RH)
• Material: HW (Super Micrograin Carbide)
• Bearing Type: Tapered Delrin bearing
• Product Type: Solid Surface Sink and Trim Bit with Bearing

Approved Applications

• Solid surface sink cut-out trimming and flush-trimming
• Under-mount and drop-in sink bowl reveal routing on solid surface countertops
• Countertop fabrication with Corian, Wilsonart, Gibraltar, and equivalent solid surface materials
• Two-pass over-hang and flush trim operations on countertop cut-outs