Product Description
The CMT 880.551.11 Solid Surface Bevel Bowl Bit is a precision router bit engineered specifically for undermount sink and bowl applications in solid surface countertop work. With a 10 deg. bevel angle, a 1 1/8 in. cutting diameter, and a 1 in. cutting height, this bit delivers clean, angled profiles that create tight, finished joints between countertops and undermount sink bowls. Designed for use with handheld routers, it features a non-marring Delrin bearing sleeve that protects finished edges during trimming and shaping operations on solid surface materials such as Corian, Wilsonart, Gibraltar, and comparable products.
Key Features
- 10 deg. bevel angle - creates the precise beveled edge required for undermount sink and bowl applications, producing a clean and professional joint between the countertop and bowl
- Non-marring Delrin bearing sleeve - the special angled Delrin sleeve rides against the workpiece without leaving marks or scratches, protecting finished solid surface edges throughout the cut
- 1 1/8 in. cutting diameter x 1 in. cutting height - provides ample material removal in a single pass for full-depth undermount profiles on kitchen and bathroom countertops
- 2-flute hardwood carbide (HW) construction - delivers smooth, consistent cuts in solid surface materials and wood composites while maintaining long-term cutting life
- 1/2 in. shank - ensures a secure, vibration-reducing fit in full-size handheld routers, improving cut accuracy and operator control
- Right-hand (RH) rotation - compatible with standard router configurations, allowing straightforward setup without special tooling adjustments
- 3 1/32 in. total length - provides sufficient reach for undermount countertop profiles while keeping the bit stable and balanced during operation
- Compatible with CMT 880.541.11 and 880.542.11 bits - can be used together as part of a complete undermount application system, giving fabricators a coordinated set of tools for full countertop and sink bowl work
Why This Product
- Designed specifically for undermount bowl and sink mounting applications - the 10 deg. bevel profile matches the geometry needed to join solid surface countertops and bowls cleanly, eliminating the need for improvised setups or multi-step workarounds
- The angled Delrin bearing sleeve directly addresses one of the most common problems in solid surface finishing - contact marks left by the bearing on a polished surface - so edges stay pristine after routing
- Pairs with CMT 880.541.11 and 880.542.11 bits to form a complete undermount countertop system, meaning fabricators can handle the entire sink bowl integration with a coordinated, matched set of bits rather than mixing unrelated tooling
- Built for handheld router use with a 1/2 in. shank, making this bit practical for on-site countertop installation work in kitchens and bathrooms - not limited to shop-only router table setups
Specifications
- Manufacturer Part Number: 880.551.11
- Brand: CMT Orange Tools
- Cutting Diameter: 1 1/8 in.
- Cutting Height: 1 in.
- Angle: 10 deg.
- Shank: 1/2 in.
- Total Length: 3 1/32 in.
- Number of Teeth: 2
- Material: HW (Hardwood Carbide)
- Rotation: Right-hand (RH)
Approved Applications
- Undermount sink and bowl installation on solid surface countertops
- Bevel edge profiling on kitchen and bathroom countertop surfaces
- Trimming and shaping solid surface, wood, and wood composite materials
- Complete undermount countertop applications when used with CMT 880.541.11 and 880.542.11 bits
Frequently Asked Questions
What is the bevel angle on this bit, and why does it matter for undermount sink work?
This bit has a 10 deg. bevel angle. That specific angle is designed to create the sloped edge profile that joins a solid surface countertop to an undermount sink bowl, producing a tight, finished fit that is both functional and visually clean.
Can this bit be used on a router table, or is it only for handheld routers?
According to the product specifications, this bit is designed for use on handheld routers. The Delrin bearing sleeve guides the cut along the workpiece edge in a handheld routing context.
What other CMT bits work with the 880.551.11 for a complete undermount application?
This bit can be used alongside the CMT 880.541.11 and 880.542.11 bits. Together, these three bits form a complete system for undermount solid surface countertop and sink bowl applications.
What does the Delrin bearing sleeve do, and how is it different from a standard bearing?
The Delrin sleeve is a non-marring material placed on the bearing at a special angle that matches the 10 deg. bevel of the bit. This allows the bearing to ride against the workpiece surface without leaving contact marks or scratches - a critical feature when working on finished solid surface edges in kitchen and bathroom settings.
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