CMT 297.080.10M Non-Metal and Laminate Saw Blade by CMT is a precision-engineered 250mm circular saw blade built for clean, accurate cuts through non-ferrous metals, melamine panels, laminates, and composite materials. With 80 Triple Chip Grind (TCG) teeth set at a -6 deg. negative hook angle, this blade delivers controlled, chip-free cutting performance on single mitre saws, double mitre saws, and radial arm saws - making it a reliable choice for woodworkers, fabricators, and shop professionals who demand consistent results on difficult-to-cut materials.

Key Features

• 80 TCG teeth with a -6 deg. negative cutting angle - the Triple Chip Grind geometry and negative hook work together to reduce chipping and produce smooth, clean edges on brittle or layered materials like melamine and laminated panels
• 250mm blade diameter with a 30mm bore - fits a wide range of standard mitre saws and radial saws, providing versatile compatibility across common workshop machines
• COMBI3 pin hole configuration - accommodates multiple pin bolt patterns, expanding compatibility with different saw arbor setups without requiring additional adapters
• 3.2mm kerf with a 2.5mm plate thickness - the thin plate reduces material waste and minimizes motor load, while the wider kerf prevents blade binding during cuts
• Carbide-tipped (HW) tooth material - hard metal carbide tips maintain edge sharpness longer than standard steel teeth, reducing the frequency of resharpening on abrasive materials like aluminum, brass, and copper alloys
• Rated to 7,600 RPM - engineered to run safely at the speeds typical of professional-grade mitre and radial saws, supporting efficient production cutting

Why This Product

• Designed specifically for non-ferrous metals and laminates - the TCG tooth profile and negative rake angle address the unique challenge of cutting materials that chip, delaminate, or gum up standard wood-cutting blades
• The -6 deg. negative cutting angle slows the tooth's engagement with the workpiece, giving the user greater control and reducing the risk of kickback when cutting plastics, composites, and soft metals
• 80 carbide-tipped teeth spread the cutting load across a large number of contact points, resulting in a finer surface finish and less edge breakout on melamine and laminated panel faces
• COMBI3 pin hole compatibility means this blade suits a broader range of saw models, making it a practical single-blade solution for shops running multiple machines

Specifications

• Manufacturer Part Number: 297.080.10M
• Brand: CMT Orange Tools
• Blade Diameter: 250mm
• Bore Diameter: 30mm
• Number of Teeth: 80
• Kerf Thickness: 3.2mm
• Plate Thickness: 2.5mm
• Grind Type: TCG (Triple Chip Grind), Negative
• Cutting Angle: -6 deg.
• Tooth Material: HW (Carbide-Tipped)
• Pin Hole: COMBI3
• Maximum Speed: 7,600 RPM

Approved Applications

• Aluminum
• Brass
• Copper alloys
• Plastic
• Composite material
• Melamine
• Laminated panels
• Single mitre saw
• Double mitre saw
• Radial arm saw

Frequently Asked Questions

Why does this blade use a negative cutting angle?

The -6 deg. negative hook angle slows the tooth's bite into the material, which is particularly important when cutting laminates, melamine, plastics, and non-ferrous metals. This controlled engagement reduces chipping on face veneers and minimizes the risk of the blade grabbing or pulling the workpiece, which can happen with standard positive-rake blades on these materials.

What is the Triple Chip Grind (TCG) tooth pattern and why is it used here?

TCG alternates between a flat-top tooth and a chamfered corner tooth. The chamfered tooth scores the material first and clears a channel, and the flat-top tooth follows to clean the bottom of the cut. This pattern is well suited to hard, brittle, or layered materials like melamine-faced panels, laminates, and non-ferrous metals, where a standard alternating top bevel grind may cause edge fracturing or delamination.

What does the COMBI3 pin hole designation mean?

COMBI3 refers to a combination pin hole pattern on the blade body that accepts multiple pin bolt configurations. This allows the blade to fit a wider variety of saw arbors and flange styles, making it compatible with more machine models without requiring a separate adapter ring.

Is a lubricant required when using this blade on non-ferrous metals?

A liquid lubricant is recommended when cutting non-ferrous metals such as aluminum, brass, and copper alloys. Wax stick lubrication is not recommended for use with this blade. Proper lubrication helps reduce heat buildup at the cutting edge, prolonging carbide tip life and maintaining cut quality.