Specification Brand : HARFINGTON BulletPoint1 : Size - Drilling Diameter: 25mm/0.98", 35mm/1.38", 45mm/1.77", 65mm/2.56", 75mm/2.95", each diamond hole saw is packed in an aluminum case with a carry handle. BulletPoint2 : Fast Cutting Tool - Diamond core drill bit is sintering with diamond grain, which has the characteristic of high hardness and wear-resistant, can drill smoothly with no broken edges for a long time. BulletPoint3 : Wet / Dry Drilling - Diamond hole drill bit can be used for wet drilling or dry drilling according to your work requirements. Water or lubrication can be used as additional cooling to prolong the service life of the bit. BulletPoint4 : Versatile Applications - Great to drill on a variety of materials, including porcelain tile, ceramic tile, stone, ceramics, masonry brick, quartz, glass, marble, mirror and so on. BulletPoint5 : Easy to Organize - Diamond drill bits are well packed in a metal box with a handle for easy storage and convenient to carry out. CompatibleMaterial1 : Glass CompatibleMaterial2 : Stone CompatibleMaterial3 : Marble ExternallyAssignedProductIdentifier1 : 0656879075054 ExternallyAssignedProductIdentifier2 : 656879075054 ItemName : HARFINGTON 5pcs Diamond Core Drill Bit Set 25/35/45/65/75mm Diamond Hole Saw Kit for Tile Porcelain Ceramic Marble Stone ItemPackageDimensions_Height : 5.12 inches ItemPackageDimensions_Length : 12.72 inches ItemPackageDimensions_Width : 8.23 inches ItemPackageQuantity : 1 ItemTypeKeyword : core-drill-bits Manufacturer : HARFINGTON Material : Diamond NumberOfFlutes : 1 NumberOfItems : 2 NumberOfPieces : 5 PartNumber : hta230822hh000612 ProductDescription : Diamond core drill bit is sintering with diamond grain, which has the characteristic of high hardness and wear-resistant, can drill smoothly with no broken edges for a long time. Diamond drill bits are well packed in a metal box with a handle for easy storage and convenient to carry out. Diamond hole drill bit can be used as wet drilling or dry drilling according to your work requirements. Great to drill on a variety of materials, including porcelain tile, ceramic tile, stone, ceramics, masonry brick, quartz, glass, marble, and so on. Diamond hole saw set can be installed on hand drills, electric drills and bench drills. Note: This porcelain drill bit is not suitable for drilling on wood or metal. Adding water or lubrication when drilling can prolong working life.