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Exchange-A-Blade EAB 4-1/2″ x 40T Multicutter Blade
Tools Exchange-A-Blade The EAB 4-1/2″ x 40T Multicutter tackles the problem Montana contractors face daily: one blade that cuts PVC pipe, composite decking, and laminate flooring without melting, grabbing, or tearing. This 40-tooth blade features C2 micro-grain carbide tips with a unique MultiCutter FTG grind that’s sharpened on the top, face, and sides. The 0° hook angle prevents the aggressive bite that causes standard wood blades to grab in plastics.
As part of EAB’s Industrial Stay Sharp line, it’s built for heavier use than their standard Green Blade series.
Material Versatility and Cutting Performance
The MultiCutter handles everything from PVC and ABS plumbing to fiberglass, light aluminum extrusions, composite moldings, plywood, particle board, melamine, laminate flooring, and lumber under 1 inch thick. That covers most of what Montana contractors cut on trim-out day. The specialty tooth geometry prevents the melting issues that plague standard 15-20° hook wood blades when cutting plastics.
The blade maxes out at 10,000 RPM and includes 5/8” and 3/8” bushings for multi-saw compatibility. Compatible tools include 4-1/2” and 5” portable circular saws, cordless models from Milwaukee M12/M18 and Makita 12V/18V lines, and mini circular saws: never use it on angle grinders due to RPM and safety concerns.
Key Specifications
| Specification | Value |
|---|---|
| Diameter | 4-1/2” (114.3 mm) |
| Teeth Count | 40 |
| Tooth Material | C2 Micro-grain Carbide |
| Tooth Grind | FTG (Full-Thickness Gullet) |
| Hook Angle | 0° |
| Arbor Size | 7/8” (includes 5/8” and 3/8” bushings) |
| Maximum RPM | 10,000 |
| Anti-kickback Design | Yes |
| Coating | Stay-Sharp® premium wear-resistant |
Safety and Warranty Considerations
The 40T multicutter blades typically hold 4.5+ star averages, with users specifically praising clean cuts in PVC. The main downside: availability can be limited, so ask your local store before you plan around it.
The anti-kickback safety design matters when you’re cutting grabby materials like PVC. That 0° hook angle doesn’t just prevent melting: it reduces the blade’s tendency to climb out of the cut.
The manufacturer backs the blade against defects in workmanship and materials, with the Stay Sharp promise covering industrial performance expectations. Note the California Proposition 65 warning about dust exposure: standard for carbide blades but worth mentioning to crews.
Frequently Asked Questions
What makes this different from a standard wood blade for cutting plastics? The 0° hook angle and FTG grind (sharpened on top, face, and sides) prevent the melting and grabbing issues caused by standard 15-20° hook wood blades in plastic materials.
Can I use this blade on my angle grinder? No. The blade is strictly prohibited for angle grinder use due to RPM limitations and safety concerns.
What size saws work with this blade? The blade fits 4-1/2” and 5” portable circular saws with its 7/8” arbor and included 5/8” and 3/8” bushings. It’s compatible with cordless saws from Milwaukee, Makita, Worx, and mini circular saws.
What materials should I avoid cutting with this blade? The blade is designed for plastics, composites, and thin lumber under 1 inch. For thicker lumber or heavy ripping, choose a blade with more aggressive geometry.