Specification Brand : Tomotato BulletPoint1 : HIGH QUALITY MATERIAL --- The hole saw bits are made of high quality diamond material, high hardness, strong and wear resistant, long service life. BulletPoint2 : EXCELLENT PERFORMANCE --- The diamond hole saw bits are designed with elliptical chip removal holes, which facilitate efficient chip removal and low cutting resistance for accurate holes. BulletPoint3 : WIDELY USED --- Diamond hole saw opener is used in a wide range of applications, suitable for marble, concrete, artificial stone, granite, ceramics and other materials. BulletPoint4 : NOTE --- Use lubricant or water when diamond hole saw bits are used, which will prolong the life of the bit. BulletPoint5 : GUARANTEE --- If you have any questions about the product, please feel free to contact us, we will give you a satisfactory reply. Color : Golden CuttingAngleString : 82.0 degrees ExternallyAssignedProductIdentifier : 8429729231892 FinishType : Finish IncludedComponents : inc ItemName : 2Pcs Diamond Drill Bits, 20mm/0.8in Diamond Hole Saw Opener for Marble, Concrete, Granite, Ceramic ItemPackageDimensions_Height : 9 centimeters ItemPackageDimensions_Length : 11 centimeters ItemPackageDimensions_Width : 9 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : hole-saws Manufacturer : Tomotato Material : High Speed Steel NumberOfItems : 1 PartNumber : Tomotatoix50up269y ProductDescription : Specification: Item Type: Diamond Hole Saw Material: Diamond Process: Brazing Hole Diameter: Approx. 20mm / 0.8in Handle Diameter: Approx. 16mm / 0.6in Color: Golden Applicable Equipment: Electric hand drill, bench drill