Mgtgbao 3(75mm) Vacuum Brazed Dry Diamond Hole Saw with Slots, Tile Hole Saw for Porcelain Granite Brick Concrete Marble Stone with 5/8-11 Thread to 3/8” Hex Shank Adapter Fit Both Angle Grinders & Electric Drills Constructed with high grade diamond grit for effortless cutting and improved durability in tough applications. High-quality core steel body helps to be more efficient and durable, not easy to deform. Cutting Length: 1-5/8” (40mm) Big Size: 2-1/2 (65mm), 3(75mm), 3-1/2(90mm), 4(100mm). Mgtgbao 1-1/8(28mm) Vacuum Brazed Dry Diamond Hole Saw with Slots, Tile Hole Saw for Porcelain Granite Brick Concrete Marble Stone with 5/8-11 Thread to... Thread M14 Golden Dia 80 mm Vacuum Brazed Diamond Hole Saw - Cutting · ✿Compatible Machines: Dry Diamond Core Drill Bit built with 5/8-11 threading female arbor for most popular Angle Grinders, wet polisher; Do not use Core Drill Bits on Hammer Model. ✿Super Quality Raw Material --Using vacuum brazed technology ,which increases resistance to temperature and friction,to make the diamond particles better attach to the core steel, improve the performance and lifetime. Package included: 1pc 3-1/2 (75mm) Diamond Core Drill Bit (5/8-11 Thread)., 1pc 3/8” hex shank. Machine recommended: 5/8-11” thread Angle grinder. Other Available Diamond Core Drill Bit Size: This hole saw drill bit set adopts M14 thread, suits for angle grinder. The design of U-shaped chip grooves provides longer working life, fast and smooth... Vacuum Brazed Core Bit Mgtgbao 3-1/2" (90mm) Vacuum Brazed Dry Diamond Hole Saw With Slots Concrete Saw