EAB OTA Construction 1-3/8″ Wood/Metal Blade

The EAB OTA Construction blade brings bi-metal construction to the oscillating tool world — High-Speed Steel teeth bonded to a Carbon Steel body. That combination means you can cut wood with embedded nails without switching blades. At 1-3/8 inches wide and capable of 1-1/2 inch depth cuts, it’s sized for the real work — door jamb trimming, drywall notching, plywood cutouts.

The universal mounting system fits Fein, Dremel, Bosch, DeWalt, Makita, Milwaukee, Porter-Cable, Rockwell, and most other brands. No adapters. No brand-specific blade inventory. Just insert it into your tool’s 12-pin seat or standard lock mechanism and tighten it down.

The Bi-Metal Advantage

Bi-metal construction gives you durability and heat resistance that high carbon steel can’t match. HCS blades work fine for clean softwood. Hit a nail or cut pressure-treated lumber, and they dull fast. This blade sits in EAB’s Construction Pro line — their professional-grade mid-tier offering.

The real benefit shows up in mixed-material cutting. You can slice through wood framing, trim, panels, and drywall, then handle PVC and ABS plastics, and even remove finishing nails and soft metals like aluminum and copper. That versatility matters when you’re trimming door jambs for new flooring — especially in older Montana homes where you never know what’s hiding behind that trim.

Specification	Value
Blade Width	1-3/8” (35mm)
Cutting Depth	1-1/2” (38mm)
Blade Design	Flush-cut
Mounting	Universal 12-pin
Compatible Tools	Fein, Dremel, Bosch, DeWalt, Makita, Milwaukee, Porter-Cable, Rockwell

According to BMR retailers, the bi-metal construction ensures long-lasting performance when cutting through wood, drywall, plastic, and soft metals like finishing nails. The universal fit adds convenience across different job sites where crews run different tool brands.

Real-World Performance

The flush-cut design handles tight spaces and corners where a standard saw can’t reach. Think outlet boxes in existing walls, notches for plumbing runs, or anywhere you need a clean cut without overcutting into adjacent surfaces.

Listed as a consumable item with no warranty coverage, which tells you what you need to know — this is a working blade that wears out through use, not a precision instrument you baby. The trade-off for that durability is reasonable. Carbide blades handle stainless steel and rebar but cost significantly more. This bi-metal blade targets the sweet spot for wood and soft-metal work at contractor-friendly pricing.

For Montana contractors dealing with mixed construction — old homes with mystery metals, renovation work where nails hide everywhere — having a blade that doesn’t quit when it hits metal saves time and frustration. The alternative is constantly switching between wood and metal blades or burning through cheap HCS blades that can’t handle the abuse.

FAQ

What tools does this blade fit? The universal mounting system works with Fein, Dremel, Bosch, DeWalt, Makita, Milwaukee, Porter-Cable, Rockwell, and most other oscillating multi-tool brands. Installation is straightforward — insert into the tool’s 12-pin seat or standard lock mechanism and ensure it’s securely tightened before use.

Can this blade cut through nails? Yes, it’s designed to remove finishing nails and cut soft non-ferrous metals like aluminum and copper. The bi-metal construction combines High-Speed Steel teeth with a Carbon Steel body specifically for enhanced durability when hitting metal.

What materials work best with this blade? The blade excels at cutting wood framing, trim, panels, drywall, PVC and ABS plastics, plus soft metals. Common applications include trimming door jambs for flooring installation and general construction and DIY renovation tasks.

How does bi-metal compare to other blade types? Bi-metal blades offer more durability and heat resistance than high carbon steel, which dulls quickly on nails or hard wood. Carbide blades handle harder metals but cost more — bi-metal provides an affordable professional choice for wood and soft-metal combinations.