【7-PIECE SET】This diamond tile hole saw kit includes 7 essential pieces: 4 diamond core drill bits (1/4", 1/4", 4/5", 1-3/8"), 1 beveling chamfer bit (2"), 1 HEX shank adapter, and 1 hexagon-design diamond saw blade (4.5"). Perfect for a wide range of drilling, milling, and chamfering tasks. 【APPLICATION】Designed for dry drilling, milling, and chamfering on porcelain tiles, ceramic, granite, marble, stone, masonry, and brick. For extended tool life, wet drilling is recommended. Ideal for both DIY enthusiasts and professional contractors. 【FEATURES】Crafted with premium diamond and steel using advanced vacuum brazed diamond technology, this kit ensures exceptional efficiency, faster drilling, and long-lasting durability. The hexagonal cutter head design enhances cooling, reduces dust buildup, and delivers superior performance. 【ATTENTATION】Recommended RPM for hole saws: 6000 (max 11000); for tile blade: 8000 (max 13200). Suitable for use with angle grinders, hand drills, and bench drills (adapter included). Tile Blade need to be flanged to fit any standard grinder 5/8-11. 【MACHINE】Tile Hole Saw Kit are Widely used in Angle Grinder, if you want used on hand drill, bench drill, you can use the adapter included in the bag. Tile Blade need to be flanged to fit any standard grinder 5/8-11. Premium Diamond Tile Hole Saw Kit – Precision Cutting for Porcelain Ceramic Marble Brick Granite – Durable, Versatile, and Easy to Use for Flawless DIY & Professional Results