Olson's Precision Ground Teeth (PGT) scroll saw blades are the finest on the market - they outperform and outlast all other blades! Razor-sharp teeth cut faster, smoother and more accurately in both straight and radius cuts. Features: Olson PGT blades are 5" long with plain ends Made of the finest carbon steel for maximum strength, durability and long blade life Unique tooth geometry and widely spaced gullets minimize burning and give you rapid chip removal