The Chainsaw Blade Set includes four different blades: a 63mm Resin Saw Blade, a 60mm Emery Saw Blade, a 63mm Hss Saw Blade, and a 63mm Alloy Saw Blade. Each blade is made of selected quality material, ensuring high toughness, hardness, and durability. The blades are not easy to break and are wear resistant. The sharp tooth edge of these blades makes cutting smooth, fast, and easy. The Alloy Saw Blade is suitable for cutting hardwood, plastic, acrylic, bakelite, aluminum, copper, and more. The High-speed Hacksaw Blade is ideal for cutting PVC, plastic, ABS, and other materials. The Emery Saw Blade is designed for cutting PCB, jadeite, jade, beeswax, and similar materials. The Resin Saw Blade is perfect for cutting iron, steel, and more. When installing the blades, it is important to ensure that the direction of the arrow marked on the blade is consistent with the rotation direction of the tool used. It is recommended to avoid applying excessive lateral pressure and curve cutting, and to ensure smooth feeding during cutting. Additionally, after installing the blade, it should be idled for a few minutes to ensure stability. The Chainsaw Blade Set comes with four saw blades in total. The Alloy Saw Blade has an outer diameter of 63mm and an inner diameter of 16mm, with 12 teeth. The High-speed Hacksaw Blade has an outer diameter of 63mm, an inner diameter of 16mm, and 60 teeth. The Emery Saw Blade has an outer diameter of 60mm and an inner diameter of 16mm. The Resin Saw Blade also has an outer diameter of 63mm and an inner diameter of 16mm. The package size is 100*100*20mm/3.94*3.94*0.79in and the package weight is 60g/2.12oz. The Chainsaw Blade Set is a versatile and reliable tool for various cutting tasks. Whether you need to cut hardwood, plastic, acrylic, PCB, or even iron and steel, this set has you covered. With its high toughness, durability, and sharp tooth edge, it ensures smooth and fast cutting. Make sure to follow the installation instructions and safety precautions for optimal performance. Key Features: Four different blades: Resin, Emery, Hss, and Alloy Selected quality material for high toughness and durability Sharp tooth edge for smooth and fast cutting Suitable for cutting a wide range of materials including hardwood, plastic, acrylic, PCB, iron, and steel Easy installation and stable operation Package includes four saw blades Various sizes and teeth options available Versatile and reliable tool for different cutting tasks