Product Description
CMT 690.113 Profile Knives for Insert Shaper System are precision-made, alloyed steel shaper knives designed for use with the CMT universal cutter head system. Sold as a pair, these 40x4mm knives (1-37/64 in. cutting height x 5/32 in. maximum thickness) deliver long-lasting performance when shaping, profiling, and molding solid wood and sheet goods. Whether you are running a spindle moulder, a dedicated moulder, or a profile and edging machine, these insert-style knives give woodworkers a repeatable, consistent profile cut session after session.
Key Features
- Alloyed steel construction - provides durability and wear resistance so the knives hold their edge longer, reducing downtime between sharpenings or replacements.
- 1-37/64 in. cutting height (40mm) - matches the KSS 40x4mm insert format, ensuring a secure, precise fit in compatible universal cutter heads and consistent profile depth on every pass.
- 5/32 in. (4mm) maximum thickness - the slim knife profile seats properly in the cutter head slot, eliminating play or vibration that could affect surface finish quality.
- Sold as a pair (2 knives) - balanced pairing keeps the cutter head running smoothly and eliminates the need to source a matching second knife separately.
- Designed for the CMT universal cutter head system - a variety of profile knives are available across the 690 series, making it straightforward to switch profiles on the same cutter head for different molding tasks.
- Long-lasting performance - engineered for repeated use on hardwood and softwood applications, reducing per-cut tooling costs over the life of the knives.
Why This Product
- The 40x4mm KSS knife format fits the CMT universal cutter heads, meaning shops already running that system can add profile 113 without purchasing a new cutter body - just swap the knives.
- Alloyed steel construction gives these insert shaper knives genuine longevity on demanding materials like hardwood and MDF, making them a practical choice for production environments where tool life directly affects operating cost.
- Buying the knives as a balanced pair ensures the cutter head remains dynamically balanced, which translates to smoother cuts and a better surface finish on molding, cabinet door, and frame-and-panel work.
- With a variety of profile numbers available in the 690 series, these knives let woodworkers build a versatile library of profiles around a single cutter head platform, reducing the total investment in shaper tooling.
Specifications
- Manufacturer Part Number: 690.113
- Brand: CMT Orange Tools
- Cutting Height: 1-37/64 in.
- Maximum Thickness: 5/32 in.
- Knife Size: 40x4mm
- Material: Alloyed Steel (SP)
- Quantity: 2 knives (sold as a pair)
- System Compatibility: CMT Insert Shaper System - universal cutter heads (692 series)
Approved Applications
- Molding and profiling on spindle moulders and dedicated moulders
- Cabinet door making
- Edge profiling on hardwood and softwood
- Frame and panel work
- Profile and edging machine operations
- MDF and chipboard shaping
What's Included
- 2x CMT 690.113 profile knives (1 matched pair, 40x4mm)
Frequently Asked Questions
What cutter heads are these knives compatible with?
The CMT 690.113 knives are designed for the CMT universal cutter head system, specifically the 692 series cutter heads. They accept the KSS 40x4mm knife format. Other insert shaper systems that accept 40mm knives in the same slot configuration may also be compatible - verify your cutter head specifications before ordering.
Why are the knives sold in pairs rather than individually?
Insert shaper cutter heads require a balanced set of knives to run safely and smoothly. Selling the 690.113 as a matched pair ensures both knives are identical in profile and dimensions, maintaining dynamic balance in the cutter head and producing a consistent, high-quality surface finish on every cut.
What materials can these profile knives cut?
The alloyed steel construction of these knives makes them suitable for use on hardwood, softwood, MDF, and chipboard. They are intended for woodworking shaping and profiling operations on a spindle moulder, moulder, or profile and edging machine.
Can I use these knives with a 50mm cutter head?
The CMT 690.113 knives have a knife size of 40x4mm (1-37/64 in. cutting height x 5/32 in. thickness). They are specified for the KSS 40x4mm insert format. Consult your cutter head documentation to confirm whether it accepts 40mm knives before use.
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