Product Description
CMT 690.028 Profile Knives for Insert Shaper System are precision-crafted shaper knives designed to work with CMT universal cutter heads, giving woodworkers a reliable solution for consistent molding profiles, cabinet door making, and edge profiling on a wide variety of wood-based materials. Sold as a pair of 2 knives, these 40x4mm insert knives are made from alloyed steel (SP material grade) and are sized at 1-37/64 inch cutting height with a maximum thickness of 5/32 inch - delivering repeatable, clean profiles on hardwood, softwood, MDF, and chipboard alike.
Key Features
- Alloyed steel (SP) construction - provides long-lasting performance and edge retention, reducing the frequency of knife replacement during production runs.
- 1-37/64 inch cutting height (40mm) - a generous profile height that allows full, well-defined molding shapes to be produced in a single pass, improving efficiency and surface quality.
- 5/32 inch (4mm) maximum thickness - precision knife body thickness engineered to seat securely and accurately within compatible insert cutter heads, ensuring stable, chatter-free cutting.
- Designed for universal cutter heads - compatible with the CMT insert shaper system, giving you the flexibility to swap profiles without purchasing entirely new tooling.
- Sold as a matched pair (2 knives per pack) - balanced knife pairs promote smooth, vibration-free operation and even wear across both cutting edges.
- Variety of available profile designs - profile number 028 is one of many interchangeable options in the CMT insert knife lineup, allowing one cutter head to serve multiple molding applications.
Why This Product
- For woodworkers and shop professionals who need versatile profile tooling without the cost of multiple dedicated heads, these 40x4mm knives slot into universal cutter heads so you can change profiles quickly and keep production moving.
- The alloyed steel (SP) material delivers long-lasting performance session after session - particularly valuable when working with demanding materials like hardwood, MDF, or chipboard where edge life matters.
- Matched pairs mean both knives wear evenly and cut in balance, reducing vibration and producing a smoother surface finish with less sanding time required after machining.
- With a cutting height of 1-37/64 inch, this profile knife is suited for full-profile molding work including cabinet door frames, decorative edges, and panel work - making it a practical choice for both production shops and dedicated hobbyists.
Specifications
- Manufacturer Part Number: 690.028
- Brand: CMT Orange Tools
- Cutting Height: 1-37/64 inch (40mm)
- Maximum Thickness: 5/32 inch (4mm)
- Material: Alloyed Steel (SP)
- Quantity: 2 knives (1 pair)
- System Compatibility: CMT Insert Shaper System - Universal Cutter Heads
- Profile Number: 028
Approved Applications
- Molding and profiling on hardwood and softwood
- Cabinet door making and frame work
- Edge profiling on MDF and chipboard panels
- Frame and panel assembly work
- Decorative shaping on spindle moulders and profile machines
Frequently Asked Questions
What cutter heads are these profile knives compatible with?
These 690.028 profile knives are designed for the CMT Insert Shaper System and are compatible with universal cutter heads that accept 40x4mm insert knives. Always confirm your cutter head accepts the 40mm knife size before ordering.
How many knives come in this package?
This listing includes 1 matched pair - 2 knives total. Using a balanced knife pair is important for smooth, vibration-free operation on your shaper or moulder.
What materials can these profile knives cut?
These alloyed steel (SP) insert knives are suited for use on hardwood, softwood, MDF, and chipboard, making them a versatile choice for both solid wood millwork and sheet-based panel applications.
Can I use these knives with different cutter head sizes or systems?
These knives are sized at 40mm x 4mm and are part of a system designed for universal cutter heads that accept this knife format. They are intended for use within the CMT Insert Shaper System, and compatibility with other brands' cutter heads should be verified against the specific head's knife slot dimensions before use.
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