1 Set HSS Miniature Circular Saw Blades Cutting Disc Woodworking Power Tools Plastic AluminumDescription:These cutting blades are made of strong high-speed steel for durability, high hardness, fast and precise cutting. They offer a very long service life and provide a straight, accurate cut. When cutting stainless steel, use high-speed steel with a high-nitrogen or coating cutter. With high hardness and high-temperature coating resistant to surface nitride, these cutting blades are quite sharp and mainly used for machining or cutting 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:1. With high hardness and high temperature resistant nitride surface coating, the cutting blades are sharp. High speed, with super wear resistance and long service life.2. Forging repeatedly with pneumatic hammer to improve its hardness and wear resistance. At high speed, it will show the fracture resistance of high speed steel.3. In order to prolong its service life, keep the heat at high temperature and high concentration of nitrogen for four hours to process the deep processing of nitrogen on the surface to achieve high cutting efficiency.4. Using machine tools for repeated roughing and grinding on the surface of the blade to achieve a high standard of surface finish.5. Mainly used for processing or cutting off copper, iron, aluminum, alloy and other medium-hard narrow and deep slit 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, 50mm Thickness:0.7mm (22mm, 25mm, 32mm)0.8mm (35mm, 44mm, 50mm)Max Speed: 20000rmp Extension: 3x50mm/0.11x1.96" Weight: 42g (Approx.) Package Included:1 Set x Cutting Blades (22mm & 25mm & 32mm & 35mm & 44mm & 50mm)1 x Extension Note:1. Please allow 1-3mm error due to manual measurement. Thank you for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take real in standard.1) we accept Alipay, West Union, TT. All major credit cards are accepted through the payment processor's secure escrow.2) payment must be made within 3 days of placing the order.3) if you are unable to check out immediately after the listing ends, please wait a few minutes and try again, payments must be completed within 3 days. About Shipping1.