When it comes to circ saws, one blade is as good as another, right? Not according to Irwin. They recently announced a new Marathon WeldTec blade series which includes improved carbide teeth and welded — instead of brazed — teeth. The bottom line: Irwin claims the new WeldTecs are 70% tougher and last 50% longer than their old ones.
The WeldTec’s stronger carbide teeth are less likely to break or chip, but what’s really interesting is the new blade’s namesake: its welded teeth. On standard blades, teeth are attached via a brazing material that acts like a “glue” to join the carbide tooth to the plate. This makes for a good bond, but it softens as heat builds during a cut. If the blade gets hot enough, the tooth can come right off.
The new Marathon WeldTec blades are welded instead of brazed to the plate. This results in less tooth loss because the weld is less susceptible to heat than brazing material.
The greater tooth durability and the new welded teeth result in a longer lasting blade, Irwin says. We can’t wait to give one a shot and see for ourselves. Now we’ll just have to see if the price point will put them out of reach for the everyday buyer. Look for them on shelves soon.
Marathon WeldTec Blades [Irwin Tools]