Product Description
The CMT 663.103.11 V-Groove and Folding CNC Bit by CMT is a precision-engineered CNC router cutter designed for V-groove routing, miter folding, sign making, lettering, and chamfer edge work. Built on a super strength steel body with a high-grade HWM reversible knife, this 45 deg. insert cutter gives woodworkers and CNC operators a single versatile tool capable of tackling a wide range of profiling and panel-folding applications on materials from solid wood and plywood to chipboard and MDF.
Key Features
- 45 deg. V-groove geometry - delivers clean, precise angled cuts for miter folds, chamfer edges, and sign lettering in a single pass, reducing the need for multiple tool changes on the CNC.
- High-grade HWM reversible knife - the insert-style knife can be flipped to expose a fresh cutting edge, extending usable tool life and lowering per-cut tooling cost over time.
- Super strength steel body - provides a rigid, vibration-resistant platform that maintains cutting accuracy at CNC feed rates and reduces deflection during deep chamfer passes.
- Right-hand (RH) rotation - compatible with standard CNC router spindles that rotate counterclockwise when viewed from above, ensuring immediate drop-in compatibility with most CNC setups.
- 20mm shank diameter - suits professional CNC router collets in the 20mm size range, providing a secure, low-runout grip during high-speed routing operations.
- 40mm cutting height - allows deep single-pass V-groove and folding cuts through thick panel stock, reducing the number of passes required and improving throughput.
- Suitable for general purpose use plus laminated and MDF material with upgraded knife - the standard HWM knife handles chipboard and plywood well, and a higher-quality knife option is available for laminated panels and MDF, making this a flexible system for varied shop environments.
- Single tooth (1 flute) design - optimized chip clearance for CNC routing applications where clean evacuation of material is critical to surface quality and bit longevity.
Why This Product
- One tool covers V-groove routing, miter folding, sign making, lettering, and chamfer edge work - eliminating the need to stock multiple specialty bits for related profiling operations.
- The reversible HWM knife insert system means you restore cutting performance by flipping or replacing a blade rather than buying an entirely new router cutter, keeping long-run tooling costs lower.
- With a 40mm cutting height and 1-3/8 in. diameter, this bit handles thick panel stock in fewer passes, making it well suited to production CNC environments where cycle time matters.
- The 45 deg. angle is a standard miter-fold geometry, meaning panels routed with this bit fold cleanly into 90 deg. box and cabinet assemblies - a practical fit for cabinetmakers, sign makers, and display fabricators working with plywood, chipboard, or MDF.
Specifications
- Manufacturer Part Number: 663.103.11
- Brand: CMT Orange Tools
- Product Type: V-Groove and Folding CNC Router Cutter
- Cutting Angle: 45 deg.
- Diameter: 1-3/8 in.
- Cutting Height: 40mm
- Total Length: 115mm
- Shank: 20mm
- Number of Teeth: 1
- Blade Material: HW (Hard Metal / Carbide Insert)
- Rotation: Right-hand (RH)
Approved Applications
- V-groove CNC routing
- Miter folding and panel folding
- Sign making and lettering
- Chamfer edge profiling
- General purpose wood panel processing
- Chipboard and plywood routing
- Laminated panel routing (with higher-quality knife insert)
- MDF routing (with higher-quality knife insert)
Frequently Asked Questions
What types of materials can the CMT 663.103.11 cut?
The standard HWM reversible knife is rated for general purpose use, chipboard, and plywood. For laminated panels and MDF, CMT notes that a higher-quality knife insert is available for this bit, making it adaptable to a broader range of sheet materials used in cabinetry, sign making, and display fabrication.
Can the knife insert in this CNC bit be replaced or rotated?
Yes. This bit uses a high-grade HWM reversible knife, meaning the insert can be flipped to present a fresh cutting edge before being replaced entirely. This design helps extend the effective service life of the tool and reduces downtime on the CNC.
What shank size and rotation does this bit require?
The CMT 663.103.11 uses a 20mm shank and is designed for right-hand (RH) rotation, which is standard on the vast majority of CNC router spindles. Confirm your machine accepts a 20mm collet before mounting.
What is the cutting angle, and what joint geometry does it produce?
The bit cuts at a 45 deg. included half-angle, which means a V-groove routed into a panel face will fold the panel into a clean 90 deg. corner - a common requirement for box construction, cabinet carcasses, and folded sign letters made from plywood, chipboard, or MDF.
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