Feature:1. This product is made of material, and its blade is and durable.2. Wide application range, suitable for marble, concrete, artificial stone, etc.3. The high‑efficiency oval chip hole design is more conducive to the discharge of chips, and the cutting resistance is small.4. Brazing drill bit can be installed on both electric drills and bench drills, very practical.5. This marble hole opener is very easy to disassemble and install, and is convenient to use.Specification:Condition:100% Brand New Item Type: Diamond Drill BitMaterial: DiamondProcess: BrazingHole Diameter: Approx. 25mm/1inHandle Diameter: Approx. 16mm/0.6inColor: GoldenApplicable Equipment: Electric drill, bench drill Package List:1 xDiamond Drill Bit