Specification Brand : UTALIND BulletPoint : Concrete Core Hole Repair BulletPoint1 : Package: 1 piece of glass drill bits BulletPoint2 : Dimensions: Diameter: 4 inch/100 mm. Overall height: 2.2 inch/56 mm. Diamond height: 0.15 inch/4 mm BulletPoint3 : Materials: Made of diamond, hard and corrosion-resistant, large chip hole for easy chip removal BulletPoint4 : Application: 100mm Core Drill Bit can be used for glass, ceramics, ceramic tiles, but cannot be used for tempered glass BulletPoint5 : How to use: Start drilling at a 45-degree angle and slowly drill vertically. Cooling the drill bit with water during use makes the diamond hole saw more long-lasting and reduces glass breakage Color : Silver ExternallyAssignedProductIdentifier1 : 0045242567782 ExternallyAssignedProductIdentifier2 : 045242567782 ItemForm : Stick ItemName : UTALIND 4 ''Diamond Drill Bits Diamond Hole Saw for Tiles 100mm Core Drill Bit for Ceramic Glass, Pack of 1 ItemPackageDimensions_Height : 2.3 inches ItemPackageDimensions_Length : 7.5 inches ItemPackageDimensions_Width : 7.5 inches ItemPackageQuantity : 1 ItemTypeKeyword : core-drill-bits Manufacturer : UTALIND Material : Diamond ModelNumber : DSD to 58-11 thread NumberOfItems : 1 PartNumber : DYX09242096 ProductDescription : Package: 1 piece of diamond drill bits Color: Silver Materials: Diamond Size:Diameter: 4 inch/100 mm. Overall height: 2.2 inch/56 mm. Diamond height: 0.15 inch/4 mm Features: Made of diamond, hard and corrosion-resistant, large chip hole for easy chip removal Application: 100mm Core Drill Bit can be used for glass, ceramics, ceramic tiles, but cannot be used for tempered glass How to use: Start drilling at a 45-degree angle and slowly drill vertically. Cooling the drill bit with water during use makes the diamond hole saw more long-lasting and reduces glass breakage Note: All dimensions are measured manually and there may be small deviations