7 Pieces Drill Cutting Discs, HSS Drill Disc Blades with (60mm) 1/4" Hex Shank, Mini Circular Saw Blades for Wood, Plastic and Metal

Heavy Duty Carbon Steel Shaft: Made of heavy duty carbon steel with nickel plated finish for extreme hardness and longer life, it resists wear, corrosion and frequent use without breaking. HSS Circular Saw Blade: The circular saw blade is made of high speed steel (HSS), sturdy and sharp enough to maximize cutting speed and achieve perfect results. Versatile and efficient: The mini cutting discs are suitable for most electric drills and are very easy to install and replace. The matching 1/4" hex shank makes it powerful and perfect for PVC pipes, plastic pipes and wood. It can also be used to cut soft metal pipes, but use coolant or water when cutting soft metal pipes to prevent the circular saw blade from overheating.Installation steps: bar ext.→ sawtooth washer → blade → flat washer → screw. Tighten the screws. A film of oil protects the blade. Once set, connect it to a drill and start using it.Note: For your safety, please wear gloves and goggles and be careful of spark when using disc drill blades. The maximum speed of the saw blade should not exceed 20,000 rpm.