Premium Material: Made of cemented carbide and YG8 tungsten tips with heat treated and hardened shape for sturdiness and durability Cut a Perfect Hole: Hardened tips combine an optimized design to ensure an ever smoother and faster cut through 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: Hole Saw Drill Bit for Cement Brick The drill is widely used for cutting concrete, brick construction, wall drilling, stone, air conditioning installation, etc. /p> Our Difference - Our goal is to manufacture the best products to inspire our customers to live a more comfortable and safe lifestyle. We have a professional product monitoring team that focuses on every detail that matters to you. Product Description Carbide Hole Saw We are committed to making the best products We want to inspire our customers to live a more convenient and safer lifestyle. We