Product Description
CMT OMM18-X1 3-7/16" Radial Saw Blade for Wood and Metal - BIM+TiN is a heavy-duty oscillating multi-tool blade engineered for professionals who need a single cutting solution across wood, metal, and composite materials. Built with a Bi-Metal (BIM) construction and coated in Titanium Nitride (TiN), this 3-7/16 in. radial saw blade delivers extended cutting life compared to standard BIM blades, making it a reliable choice for demanding job-site tasks like plunge cutting in plasterboard, trimming aluminum profiles, cutting copper and sheet metal, and working through epoxy or glass-fibre composite surfaces. Its universal arbor design ensures broad compatibility with most oscillating multi-cutters on the market, so you can swap it in without adapters or special tooling. Sold as a 1-piece unit.
Key Features
- BIM+TiN Construction - the Bi-Metal base provides the flexible toughness needed for metal and wood cutting, while the Titanium Nitride coating significantly extends blade life beyond what standard BIM blades offer, reducing replacement frequency on long jobs.
- 3-7/16 in. Diameter with 20 TPI - the 20 teeth-per-inch tooth count delivers fine, controlled cuts in sheet metal, aluminum pipe, copper profiles, and thin wood-based panels, minimizing burring and tear-out on finished surfaces.
- Universal Arbor Fit - mounts directly to most oscillating multi-cutters without a separate adapter, saving setup time and ensuring a secure, vibration-reducing fit across a wide range of power tool brands.
- Extra-Long Life Rating - CMT designates this blade as "Extra-Long Life," meaning it is engineered to outlast standard multi-tool blades when used across the full range of compatible materials, lowering cost-per-cut on high-volume work.
- Plunge Cutting Capability - the radial geometry supports accurate plunge entries into plasterboard, epoxy, glass-fibre panels, and similar sandwich materials, making it effective for electrical box cutouts, dashboard recesses, and flush-entry applications.
- Multi-Material Versatility - rated for wood, plasterboard, fibre-cement board, sheet metal, copper pipe, and aluminum profiles in a single blade, reducing the need to carry multiple specialty blades to one job site.
Why This Product
- If your work regularly involves switching between wood framing, metal pipe, and composite panel cutting, this blade eliminates the swap - its BIM+TiN construction handles all of those materials without changing tools, keeping your workflow moving.
- The TiN coating is the practical difference between a standard BIM blade and this one - it adds a hard, wear-resistant outer layer that is especially beneficial when cutting nail-embedded wood, sheet metal edges, or abrasive fibre-cement board where standard blades dull quickly.
- Plunge cutting in tight spaces - such as cutting recesses in a boat dashboard or trimming aluminum molding to length - is exactly what the radial saw geometry is designed for, giving you clean entry without needing to pre-drill or rout a starting point.
- The universal arbor means this blade is not locked to a single tool brand, making it a practical stock item for tradespeople who carry multiple oscillating multi-cutters or work across different job-site tool inventories.
Specifications
- Manufacturer Part Number: OMM18-X1
- Brand: CMT Orange Tools
- Diameter: 3-7/16 in.
- Number of Teeth: 20 TPI
- Blade Material: Bi-Metal with Titanium Nitride Coating (BIM+TiN)
- Arbor Type: Universal Arbor
- Quantity: 1 Piece
Approved Applications
- Cutting wood, plasterboard, and fibre-cement boards
- Cutting sheet metal, copper pipe, and aluminum pipe and profiles
- Plunge cutting in plasterboard
- Cutting smaller aluminum moldings to length
- Cutting recesses in epoxy and glass-fibre composite materials (such as dashboards)
- Circular and radial oscillating cuts in multi-material sandwich panels
What's Included
- 1x CMT OMM18-X1 3-7/16 in. BIM+TiN Radial Saw Blade
Frequently Asked Questions
What is the difference between a standard BIM blade and this BIM+TiN blade?
A standard BIM (Bi-Metal) blade uses a high-speed steel tooth strip welded to a flexible alloy body. This CMT blade adds a Titanium Nitride (TiN) coating over that BIM construction, which creates a harder, more wear-resistant cutting surface. The result is an extra-long life blade that outlasts standard BIM when cutting metal, abrasive board materials, and similar demanding surfaces.
Will this blade fit my oscillating multi-tool?
This blade uses a universal arbor, which is designed to fit most oscillating multi-cutters on the market. It is compatible with tools from major brands that accept universal-arbor accessories. If your tool uses a proprietary mount system, check whether it accepts universal-arbor blades before purchasing.
Can this blade make plunge cuts?
Yes. Plunge cutting is one of the primary intended uses of this blade. It is specifically designed for plunge cuts in plasterboard, cutting recesses in epoxy and glass-fibre panels (such as boat dashboards), and similar applications where the blade must enter the workpiece directly without a pre-cut starting hole.
Is this blade suitable for cutting aluminum and copper?
Yes. The OMM18-X1 is rated for cutting aluminum pipes and profiles as well as copper pipes and profiles. The 20 TPI tooth count and BIM+TiN construction are well-suited for non-ferrous metals, producing cleaner cuts with less burring compared to coarser blades. It is also appropriate for trimming smaller aluminum moldings to length.
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