TCT (Tungsten Carbide Tipped) also known as resharpenable planer blades made of hard alloy (HM). Dimensions 82x29x3 mm. Universal attachment allows for wide use on other brands. for example Hitachi. Ryobi. Skil. Black & Decker etc. Set of 2 blades. The surface finish is not as perfect as with HSS blades. but the durability and sharpening requirement of the blades is approximately 5 times longer than a classic HSS blade. A good choice for pre-processing.