1 Set HSS Circular Saw Blade Cutting Disc Woodworking Plastic Power Tools 22-44mm Description:These Cutting Blades are made of strong steel with high strength, high hardness, fast and cutting. They offer a long life and straight, accurate cutting. When cutting stainless steel, use high nitrogen steel or a blade cutter. With high hardness and high-temperature resistant surface nitride coating, these cutting blades are quite and mainly used to process or cut off copper, iron, aluminum, alloy and other medium hard narrow and deep metallic material. They can also be used for milling on non-metallic materials such as plastic, wood. Features: High hardness and high temperature resistant nitride coating surface, cutting blades are. High, with super wear Resistance and long service life. Forging repeatedly pneumatic hammer to improve its hardness and wear resistance. Under high it will show super fatigue fracture resistance to high steel., so as to prolong its service life, keep warm at high temperature and high Nitrogen concentration for four hours to process deep nitrogen surface treatment makes it have high cutting efficiency. Using machine tools for multiple roughing processing and grinding on the blade surface to achieve a high standard of surface finish. First of all, used for machining or cutting off copper, iron, aluminum, alloy and other medium hard narrow and deep metallic material. It can also be used for milling on non-metallic materials such as plastic, wood. Specifications:Material: HSS Inner Diameter: 6.35mm Outer Diameter: 22mm, 25mm, 32mm, 35mm, 44mm Thickness:0.7mm (22mm, 25mm, 32mm)0.8mm (35mm, 44mm)Max: 20000rmp Extension Rod Size: 3.17x50mm / 0.12x1.96" Weight: 31g (Approx.) Package Included:1 Set x Cutting Blades (22mm & 25mm & 32mm & 35mm & 44mm)1 x Extension RodNote:1. Please allow 1-2mm error due to manual measurement. Thank you for your understanding.2.Monitors are not calibrated same, the color of the item displayed in the photos may beShowing slightly different from the real object. Please take the real wOne as standard.