Diamond core drill bit is sintering with diamond grain, which has the characteristic of high hardness and wear-resistant, can drill smoothly with no broken edges for a long time. Diamond drill bits are well packed in a metal box with a handle for easy storage and convenient to carry out. Diamond hole drill bit can be used as wet drilling or dry drilling according to your work requirements. Great to drill on a variety of materials, including porcelain tile, ceramic tile, stone, ceramics, masonry brick, quartz, glass, marble, and so on. Diamond hole saw set can be installed on hand drills, electric drills and bench drills. Note: This porcelain drill bit is not suitable for drilling on wood or metal. Adding water or lubrication when drilling can prolong working life. 6mm Serrated Hollow Core Diamond Drill Bits Hole Saw for Glass Tile Stone. 10pcs High-speed Steel Drill Bits 5mmx55mm for Hole Saws Arbor Replacement. 32mm Brazed Diamond Core Drill Bits with M10 Arbor Adapter for Tile Marble Stone. 1.5mm Solid Carbide Left Hand Spiral Flutes Twist Drill Bit for Alloy Metal 2pcs. 1.2mm Solid Carbide Left Hand Spiral Flutes Twist Drill Bit for Alloy Metal 2pcs. Concrete Masonry Drill Bit High Speed Steel 1/4 Shank 5mm Dia. Tool Bags & Boxes. Building & Painting Tools. Polishing & Cutting Tools. Installing & Sealing Parts. Saws & Saw Blades. 2.45mm Tungsten Carbide Spiral Flute 1/8 Shank Circuit Board PCB Drill Bit 8pcs. 14mm Carbide Hole Cutter Hole Saw for Stainless Steel with Center Drill. 42mm Sintered Diamond Core Drill Bits Hole Saws for Brick Concrete Masonry. 21.5mm Hole Saw Cutter High Density Carbide Teeth for Stainless Steel Metal 2Pcs. Forstner Wood Boring Drill Bits 21mm Dia Carbide Alloy Steel Round Shank 2Pcs. 6pcs Diamond Core Drill Bit Set 25/35/45/50/65/75mm for Porcelain Tile Ceramic. HSS Hole Saw 27mm Drill Bit Cutter High Speed Steel for Metal Alloy Wood. 1.55mm Tip Carbide PCB Jewelry CNC Engraving Micro Drill Bits 6 Pcs. 21.5mm Hole Saw Cutter High Density Carbide Teeth for Stainless Steel Metal. Wood Boring Drill Bit 15mm Forstner Hole Saw Carbide Round Shank Cutting 2Pcs. 25mm Sintered Diamond Core Drill Bit with M10 Arbor Adapter for Masonry Stone. We are not responsible for any loss in transit if a wrong address is provided. We are continually expanding our product selection to better serve your need. We look forward to providing the best sevice to you – our dear customers, so take a look around our store and find the product that you want. You can put your trust in us!