Dry Diamond Drill Bits Set 5PCS with 1/4 5/16 3/8 1/2 Inch for Granite Ceramic Marble Tile Stone Glass Diamond Coating

Features: : full emery electroplating with high temperature quenching and high hardness sharp and durable. Solid Cooling Wax: Internal sealing wax cutting and cooling can be dry which make it more durable. Wide Applications: Can be used for granite ceramic marble tile stone glass diamond coating and other hard material. Multiple Sizes: There are a variety of sizes for option 6/6/8/10/12mm. that is 1/4 5/16 3/8 1/2 inch. You can choose the most suitable one according to your need. General Round Handle: The bottom of the circular design a wide of application can be used for hand drill and angle grinder. Specifications: Material: Brazed Diamond Package Size: 10 * 10 * 6cm / 3.9 * 3.9 * 2.4in Package Weight: 100g / 3.5oz Package List: 2 * 6mm Drill Bit 1 * 8mm Drill Bit 1 * 10mm Drill Bit 1 * 12mm Drill Bit