Specification Brand : FACHLICH BulletPoint1 : 【Size】2pcs,Diameter 25mm, Total Length 65mm,Working Depth 30mm,Diamond Height 10mm,Diamond Grit #40/45, Connection:Triangular Shank.Please see pictures for more details. BulletPoint2 : 【Application】Worked great for dry/wet drilling holes through porcelain tile,ceramic Tile, granite, marble, stoneware,stone,etc. BulletPoint3 : 【Why choose us】Superb suitability for a wide range of applications to meet the needs of different materials.Cutting-edge technology: High-quality steel; combined with cutting-edge vacuum brazing technology, the drill bit is sharp and sturdy, with a long service life. Vacuum brazing is the most effective way of making diamond tools. It creates an unbreakable and extremely heat resistant segments. BulletPoint4 : 【Feature】Serrated special bit design greatly improves sharpness and drilling speed. There are several chip removal slots between the serrated teeth, which can quickly remove dust during drilling and are not easy to be clogged.Preferred 10MM high-quality diamond, combined with the scientific ratio to create, high hardness and dense.Three-sided shank design, shank diameter 10MM, clamping stable, drilling smooth and easy. BulletPoint5 : 【Machine】Compatible with most drillers/angle grinders,use the adapter to switch freely between the two machines. Please do not use impact mode if switching to equipment with impact mode.If you have any problem when you use the product, please feel free to contact us for satisfactory customer service. BulletPoint6 : Material:Emery Outer Layer+Stainless Steel Color : Silver ExternallyAssignedProductIdentifier1 : 0791180059314 ExternallyAssignedProductIdentifier2 : 791180059314 ExternallyAssignedProductIdentifier3 : 00769053005447 IncludedComponents : 1PCS X Leather Round Hole Punch Polish ItemDisplayWeight : 4 pounds ItemForm : Sheet ItemName : Diamond Tile Core Drill Bits - FACHLICH 25MM 1'' 2pcs Triangular Shank Diamond Hole Saw Bits for Porcelain Ceramic Tile Granite Marble ItemPackageDimensions_Height : 2 inches ItemPackageDimensions_Length : 7.1 inches ItemPackageDimensions_Width : 5.9 inches ItemPackageQuantity : 2 ItemShape : Square ItemTypeKeyword : core-drill-bits Manufacturer : FACHLICH Material : Emery Outer Layer+Stainless Steel ModelNumber : 3PCS 1/2" NumberOfBoxes : 1 NumberOfItems : 1 NumberOfPieces : 10 PartNumber : 2133025405002 ProductDescription : Description: Brand New And High Quality. Features: Made Of High Quality Stainless Steel,Plated With Emery Both Inside And Outside,It Makes Easy To Polish The Inner And Outer Edges Of The Round Punch. The Round Hole Punch Polisher Is Plated With Emery,Equivalent To 300 Mesh,And Is Suitable For Punching And Grinding Of Most Regular-Sized Circular Holes Such As Various Hy Spcs. Suitable For Punching,Polishing,Sharpening And Grinding Of Most Circular Holes Such. Conical Outer Diameter:Minimum 2MM(0.078"),Maximum Unlimited Size. Conical Inner Diameter:Minimum 1MM(0.039"),Maximum 15.5MM(0.61") Specifications: Material:Emery Outer Layer+Stainless Steel Color:Silver Gray Size:75MMX20MM(2.95"X0.78") Grinding Range:3-16MM(0.118"-0.63") Package Include: 1PCS X Leather Round Hole Punch Polish