Product Description
CMT 690.112 Profile Knives for Insert Shaper System - 1-37/64" x 5/32" (40x4mm), 2-Pack are precision-ground alloyed steel shaper knives designed for use with CMT universal cutter heads. Sold as a matched pair, these 40x4mm profile knives deliver long-lasting performance across a wide range of molding, profiling, and woodworking applications. Whether you are shaping cabinet door frames, cutting decorative edge profiles, or producing architectural moldings, this pair of insert shaper knives offers consistent results and reliable repeatability in professional woodworking environments.
Key Features
- Alloyed steel construction - provides durability and wear resistance, extending the service life of the knives through repeated use on demanding materials like hardwood and MDF.
- 1-37/64" cutting height with 5/32" maximum thickness (40x4mm) - precisely sized to fit CMT universal cutter heads and other insert shaper systems that accept 40mm knives, ensuring a secure, accurate fit every time.
- Pair of 2 matched knives (KSS 40x4mm) - sold as a balanced set so both knives can be installed simultaneously, maintaining proper weight distribution and vibration-free operation in the cutter head.
- Compatible with a variety of CMT universal cutter heads - designed to work within the CMT Insert Shaper System, giving woodworkers flexibility to swap profiles quickly without changing the entire cutter head assembly.
- Long-lasting performance - the alloyed steel composition resists dulling during high-volume production runs, reducing downtime and the frequency of knife replacements.
Why This Product
- Purpose-built for the CMT Insert Shaper System - these 40x4mm knives are engineered specifically for CMT universal cutter heads, meaning woodworkers get a guaranteed fit and consistent profile geometry without the guesswork of sourcing generic knives.
- Alloyed steel means more cuts between changes - the material choice delivers extended cutting life, which translates directly to lower cost per linear foot of molding and fewer interruptions during production runs on hardwood, softwood, or sheet goods.
- A matched pair in every pack - having both knives supplied together ensures balanced loading in the cutter head from the start, supporting smooth, chatter-free cutting and consistent profile depth across the full workpiece.
- Profile number 112 expands your shaping library - because the CMT Insert Shaper System accepts a variety of profile knives, adding the 690.112 pair lets you produce a specific molding shape without investing in an entirely new cutter head, keeping tooling costs practical.
Specifications
- Manufacturer Part Number: 690.112
- Brand: CMT Orange Tools
- Cutting Height: 1-37/64"
- Maximum Thickness: 5/32"
- Knife Size (metric): 40x4mm
- Material: Alloyed steel (SP)
- Quantity: 2 knives (pair)
- System Compatibility: CMT Insert Shaper System - universal cutter heads
Approved Applications
- Molding and profiling on spindle moulders and shapers
- Cabinet door making and frame profiling
- Edge profiling on hardwood, softwood, MDF, and chipboard
- Frame and panel woodworking
- Decorative molding production on profile and edging machines
Frequently Asked Questions
What cutter heads are these profile knives compatible with?
The CMT 690.112 knives are designed for the CMT Insert Shaper System and are compatible with CMT universal cutter heads that accept 40x4mm (1-37/64" x 5/32") knives. They are part of a broader range of profile knives available for this system, allowing you to change profiles without replacing the entire cutter head.
How many knives are included in one pack?
Each pack of CMT 690.112 contains 2 profile knives, sold as a matched pair. Using a matched pair ensures balanced weight distribution in the cutter head for smooth, vibration-free cutting performance.
What materials can these shaper knives cut?
The alloyed steel construction makes the 690.112 profile knives suitable for shaping and profiling hardwood, softwood, MDF, and chipboard. The long-lasting alloyed steel holds an edge well across these common woodworking materials.
What is the difference between the cutting height and the maximum thickness on these knives?
The cutting height of 1-37/64" (approximately 40mm) refers to the height of the profile the knife can produce - the vertical dimension of the molding shape being cut. The maximum thickness of 5/32" (4mm) refers to the physical thickness of the knife blade itself, which determines compatibility with the knife slot in the cutter head. Both dimensions must match your cutter head specifications for a proper fit.
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