Product Description
The CMT 881.511.11 Solid Surface Drainboard Bit is a precision-engineered router bit designed specifically for creating custom drainboard grooves and patterns in solid surface countertops. With a 5/8 in. cutting diameter, 1/2 in. cutting height, and a 1/8 in. radius, this 2-flute bit delivers clean, repeatable groove profiles that channel water efficiently away from the sink area. Designed for use with hand-held portable routers featuring a 1/2 in. shank, it gives fabricators and countertop installers the control and consistency needed for professional-quality solid surface work.
Key Features
- 5/8 in. Cutting Diameter with 1/8 in. Radius - produces a precisely shaped drainboard groove profile that guides water flow efficiently, reducing the need for hand-finishing or re-routing.
- 1/2 in. Cutting Height - allows a full-depth drainboard groove in a single pass through solid surface material, saving setup time and improving groove consistency.
- 2-Flute HW (Carbide) Construction - hard carbide cutting edges stay sharp through extended runs on solid surface countertops, reducing bit changes and maintaining groove quality.
- Right-Hand Rotation - compatible with the standard direction of hand-held portable routers, ensuring straightforward setup and smooth cutting action without special tooling.
- 1/2 in. Shank - the larger shank diameter provides greater stability and reduced vibration compared to smaller shank bits, resulting in cleaner groove edges and improved bit longevity.
- 2 1/2 in. Total Length - gives sufficient reach and clearance for drainboard routing applications while keeping the bit rigid and well-supported in the collet.
Why This Product
- Purpose-built for drainboard routing - this bit is engineered specifically for creating water-channeling groove patterns in solid surface countertops, so fabricators get the right geometry without improvising with general-purpose bits.
- The 1/2 in. shank pairs with standard hand-held portable routers, making this a practical addition to an existing tool setup without requiring additional equipment or collet adapters.
- The 1/8 in. radius profile creates a smooth, rounded groove bottom that is both functional for water drainage and aesthetically clean - an important consideration in finished countertop installations.
- Hard carbide (HW) construction on a 2-flute design balances cutting speed with edge retention, making this bit a reliable choice for shops that fabricate solid surface countertops on a regular basis.
Specifications
- Manufacturer Part Number: 881.511.11
- Brand: CMT Orange Tools
- Diameter: 5/8 in.
- Cutting Height: 1/2 in.
- Total Length: 2 1/2 in.
- Radius: 1/8 in.
- Shank: 1/2 in.
- Number of Flutes: 2
- Material: HW (Carbide)
- Rotation: Right-Hand (RH)
Approved Applications
- Drainboard groove routing in solid surface countertops
- Custom drainboard pattern creation with hand-held portable routers
Frequently Asked Questions
What type of router is this bit compatible with?
This bit is designed for use on hand-held portable routers. It features a 1/2 in. shank, which fits the standard 1/2 in. collet found on most full-size portable routers.
What profile does this bit cut?
This bit cuts a drainboard groove profile with a 5/8 in. diameter, 1/2 in. cutting depth, and a 1/8 in. radius at the base of the groove. It is intended for creating water-channeling patterns in solid surface countertop material.
Is this bit designed for a specific material?
Yes - this is a solid surface specialty drainboard bit, designed for routing drainboard patterns in solid surface countertops. The hard carbide (HW) cutting edges are suited to the consistent, repeatable cutting demands of solid surface fabrication work.
In which direction does this bit rotate?
This bit has a right-hand (RH) rotation, which is the standard direction for hand-held portable routers. No special setup or reverse-rotation collet is required.
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