Feature:1. Selected high quality material blade, which is of sharpness and durable2. Elliptical chip hole designs is more conducive to chip discharge, efficient and the cutting resistance is small3. The product have wide scope of application, applicable to marble, concrete, artificial stone, etc.4. hole saw also can be used for all kinds of stone, ceramics, vitrified tiles, glass, etc.5. Brazing drill bit can be installed on both electric drills and table drills, very practicalSpecification:Item Type: Diamond Brazing DrillMaterial: DiamondProcess: BrazingColor: GoldenHole Diameter: Approx. 55mm / 2.2inHandle Diameter: Approx. 8mm / 0.3inQuantity: 3PcsApplicable Equipment: Electric drill, table drillRange of Application: Suitable for all kinds of stone, ceramics, vitrified tiles, glass, etc. Package List:3 x Diamond Brazing Drill