High Speed Steel Saw Blade. This is a new high speed steel saw blade. High speed steel saw blades are used for cutting all kinds of metal. The blade measures approximately 1" (25 mm) in diameter. We work hard to update our descriptions and pictures of our merchandise. As part of a process of ongoing innovation by our suppliers, newer versions of the item shown may be shipped before we are able to complete an update. As a result there may be a slight variation in color and design.