Forrest STIF06-1 6-Inch Size 1-Inch Arbor Circular Saw Blade Stiffener - Dampener
Forrest's blades offer a superior cut that leaves a rip-cut saw edge that is as smooth as if it had been sanded, and a cross-cut edge that is almost mark-free. The blades run very quietly, and backside tearout in plywood is negligible.  Each blade is virtually hand-made. The plate is hand-tensioned (up to 15 minutes per blade), superior C-4 carbide teeth are hand-brazed to the plate, and the blade is straightened and restraightened multiple times throughout the process.  Think of a Forrest blade as a tool in your shop, not an accessory. Forrest stands behind it's blades by offering a sharpening service that bring blades back to the exact tolerances offered in a new blade. And this same exacting service is available for other manufacturer's blades as well, so they should come back better than new.