Diamond Drill Hole s for Marble Hole Drill Bit 18mm - 12mm

Description: ceramics porcelain ceramic tile porcelain tile limestone slate marble granite light stone and fiberglass. It is important to note that you must keep your drill bit wet as the friction of the bits and materials build quickly. Sizes: Includes the following diameters: 8mm 10mm 12mm 14mm 16mm 18mm Made from metal alloy durable and strong quality Precise finish strong wear resistance Specification: Material: Diamond Total Length: Approx. 82mm/ 3.23inch Top Diameter: Approx. 9mm/ 0.35inch; Tapping Diameter: approx.57mm/ 2.24inch Color: black red golden (shipped by random) Package Includes: 1 Piece Diamond Drill Bit (The color of products are shipped by random) Note: Please allow 1-3mm error due to manual measurement make sure you do not mind before you bid