CMT 225.709.12 Non-Ferrous Metal and Melamine Saw Blade - 12" x 5/8", 108-Tooth TCG, -6 deg. Negative Hook Angle is an Industrial Xtreme circular saw blade engineered for heavy-duty cutting of aluminum, brass, copper, PVC, and other non-ferrous metals. The 108-tooth Triple Chip Grind (TCG) configuration combined with a -6 deg. negative hook angle delivers clean, controlled cuts through thick-walled extrusions and sheet stock, reducing burring and chipping so fabricators and metalworkers spend less time deburring and more time building. Whether you are cutting aluminum extrusions on a miter saw, ripping copper on a table saw, or processing PVC profiles on a radial arm saw, this blade is purpose-built to handle demanding production environments.

Key Features

• 108-Tooth Triple Chip Grind (TCG) - the high tooth count combined with TCG geometry distributes cutting load evenly across each tooth, producing a fine, clean edge on aluminum, brass, copper, and PVC with minimal material tear-out.
• -6 deg. Negative Hook Angle - the negative rake reduces the aggressive bite of the blade into the workpiece, helping prevent the blade from grabbing or self-feeding during cuts through thick-walled metal extrusions, which improves operator control and cut consistency.
• 12" Diameter with 5/8" Bore (15.88mm) - the large diameter maximizes depth of cut capacity on standard 12-inch miter saws, radial arm saws, and table saws, while the 5/8" bore fits the most common arbor sizes for quick, tool-compatible installation.
• 0.126" Kerf Thickness and 0.098" Plate Thickness - the kerf-to-plate ratio provides adequate rigidity to resist blade flex during heavy cuts while keeping material waste to a minimum, which is especially important when working with costly non-ferrous metals.
• 6,400 RPM Maximum Speed - rated for up to 6,400 RPM to match the operating speeds of standard radial arm saws, miter saws, and table saws, ensuring the blade runs safely within the speed limits of common workshop and production machines.
• Tungsten Carbide (HW) Tooth Material - micro-grain tungsten carbide tips maintain cutting sharpness over extended use through tough materials like thick aluminum and brass, meaning fewer blade changes and lower cost per cut over the life of the blade.
• Optimized for Thick-Walled Extrusions - the blade geometry is specifically rated as excellent for thick-walled extrusions and good for thin-walled extrusions, so it covers a wide range of aluminum and non-ferrous profile work without needing a blade change between jobs.

Why This Product

• Professionals cutting thick aluminum extrusions, copper pipe, or brass stock need a blade that controls feed aggressiveness - the -6 deg. negative hook angle and TCG tooth form work together to prevent self-feeding and deliver a smooth, burr-reduced cut on dense non-ferrous materials.
• With 108 teeth on a 12" diameter plate, this blade produces a finish-quality edge on melamine, PVC, and non-ferrous sheet goods without requiring secondary cleanup, saving time in high-volume fabrication or shop environments.
• Rated at 6,400 RPM and designed for radial arm saws, miter saws, and table saws, this blade integrates directly into the most common stationary and sliding machines used in metal fabrication and woodworking shops - no adapter or speed reducer needed for typical setups.
• The Industrial Xtreme series from CMT targets heavy-duty cutting applications where blade durability and cut consistency matter - the tungsten carbide (HW) tooth material supports extended service life in demanding production cutting of aluminum, brass, copper, and PVC.

Specifications

• Manufacturer Part Number: 225.709.12
• Brand: CMT Orange Tools
• Diameter: 12"
• Bore Diameter: 15.88mm (5/8")
• Number of Teeth: 108
• Tooth Grind Type: TCG (Triple Chip Grind)
• Cutting Angle: -6 deg.
• Kerf Thickness: 0.126"
• Plate Thickness: 0.098"
• Maximum RPM: 6,400
• Tooth Material: HW (Tungsten Carbide)

Approved Applications

• Heavy-duty cutting of thick-walled aluminum, brass, and copper extrusions
• Cutting thin-walled non-ferrous metal extrusions and profiles
• Cutting PVC and plastic sheet goods and profiles
• Crosscutting and ripping non-ferrous metals on radial arm saws
• Miter and compound miter cuts on aluminum and non-ferrous stock
• Table saw and special saw operations on melamine panels and non-ferrous sheet

Frequently Asked Questions

What machines is the CMT 225.709.12 compatible with?

This blade is designed for use on radial arm saws, miter saws, table saws, and special saws. It features a 5/8" bore (15.88mm) and a 12" diameter, which fit the arbors and blade guards of most standard 12-inch stationary and sliding machines in these categories.

Why does this blade use a negative hook angle instead of a positive one?

The -6 deg. negative cutting angle reduces the blade's tendency to self-feed aggressively into the workpiece. This is especially important when cutting dense non-ferrous metals like aluminum, brass, and copper, where an overly aggressive blade can grab the material, cause vibration, or produce a rough cut. The negative hook angle promotes smoother, more controlled cutting.

What materials can this blade cut?

The CMT 225.709.12 is designed to cut aluminum, brass, copper, PVC, and non-ferrous metals. It is rated as excellent for thick-walled extrusions and good for thin-walled extrusions, and it also handles melamine panels as indicated in the Industrial Xtreme non-ferrous metal, PVC, and melamine circular saw blade series.

What is the maximum safe operating speed for this blade?

The maximum rated speed is 6,400 RPM. Always verify that your machine's no-load speed does not exceed this rating before mounting and operating the blade, and follow all applicable safety guidelines for circular saw blade use.