Features: 1Diamond blades are sharp, hard and wear?resistant, and have a long service life. 2The oval chip hole design is more conducive to the discharge of chips, and the cutting resistance is small. 3Wide application range, can applied to marble, concrete, artificial stone, etc. 4Sophisticated production, excellent performance, can be used for a long time, more in line with your needs. 5Easy to carry and install, and it can bring more convenience to your work. Condition: 100% Brand New Item Type: Diamond Drill Bit Material: Diamond Color: Blue Process: Sintering Optional Opening Diameter: Approx. 55mm/2.2in, 60mm/2.4in, 65mm/2.6in Optional Diamond Drill Bit Specifications: Approx. 55mm/2.2in, 60mm/2.4in, 65mm/2.6in Applicable Equipment: Electric Drill, Bench Drill Scope of Application: Core holes for marble, concrete, artificial stone, granite and other materials. Package Included: 1 x Diamond&nbspDrill&nbspBit