Premium Material: Made of carbide and YG8 tungsten tips with heat treated and tempered for sturdy and durable Cut a Perfect Hole: Hardened tips combine an optimized design providing a smoother cut and faster from a hole without vibration High Efficiency: Design of two large chip openings on both sides of the wall cutter for smoother chip removal and higher drilling performance Professional Core Drill Bit: The cement brick hole saw drill bit is widely used for concrete cutting, brick engineering, wall drilling, stone, air conditioning installation, etc.< /p> Our Difference - We aim to make the best products to inspire our customers to live a more convenient and safer lifestyle. We have a professional product monitoring team who focus on every detail that matters to you. Product Description Carbide Hole Saw We aim to make the best products to inspire our customers to live a more convenient and safer lifestyle. We have a professional product monitoring team who focus on every detail that