50-90mm Diamond Drill Bit Ceramic Tile Concrete Wall Glass Marble Hole Opener

Specifications: Made of high quality diamond material with fine workmanship it is very durable wear-resistant and easy to use. During processing it has the advantages of no chipping fast speed sharpness and wear resistance. It is suitable for drilling stone ceramics vitrified tiles glass etc. Item Name: Hole Opener Material: Diamond Drill Bit Models: 50mm 55mm 60mm 65mm 70mm 80mm 85mm 90mm Features: Fast Drilling Speed Long-Lasting Durable Wear-Resistant Easy to Use Size: 50mm/1.97 55mm/2.17 60mm/2.36 65mm/2.56 70mm/2.76 80mm/3.15 85mm/3.35 90mm/3.54 (Approx.) Notes: First it is positioned at a 45 inch bevel and drills vertically the speed should not be too fast then the speed should be slowly operated at about 800-1000 rpm and water must be added to cool the operation. Due to the light and screen setting difference the item s color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Hole Opener