5 PCS Diamond Hole Saw Set M14 Thread & 15 mm Carborundum Height & Efficient Chip Removal Introducing our premium diamond drill bits set, featuring sizes of 22/35/40/50/65 mm (0.87/1.4/1.6/2/2.5 inch) with an M14 thread for swift and precise cutting. Experience hassle-free operation without water, keeping your workspace tidy. Note: It’s advisable to wear gloves and a mask during use. Dust can be efficiently cleaned with a vacuum. Robust and Long-Lasting Materials Simple Installation Process Exceptional Cutting Performance Convenient Portable Case Key Features Sturdy and Long-Lasting Construction: Crafted from top-grade diamond, the cutting blades of these hole saws outperform traditional carbide or bi-metal options for superior results. Versatile Use: Designed for precision, the core extractor creates clean and accurate holes in tough materials such as tiles, granite, marble, stone, and porcelain. Convenient Storage Case: The set of five diamond drill bits is housed in a compact case,