Specification Brand : PaWuKi BulletPoint1 : [Size Diamond core drill bit]--Total 8pcs,1/4" 1/4" 3/8" 1" 1-3/8" 1-1/2" 2" 2-4/7" (6/6/10/25/35/38/50/65mm), diamond height 10mm, total length 60mm, 5/8-11 thread tile drill bits,1pc SDS adapter BulletPoint2 : [Size Diamond beveling chamfer bit& finger bit]--2"(50mm), 46mm workable length, 5/8-11 Thread, Grit #80, toal Length 55mm,Chamfer Angle:Top Angle 60 degree;finger bit:3/8"(10mm).45mm workable length,5/8-11 Thread,Grit #45/50, toal Length 70mm BulletPoint3 : [Wide Application] --Worked great for dry drilling clean holes through porcelain tile shower walls, ceramics, bathroom tile,marble granite,stone,masonry,brick,stucco,counter top with ease,Using water could prolong the lifetime of the tile drill bits BulletPoint4 : [Vacuum Brazed Technology] --Increases resistance to temperature and friction,provide 5x the working life compared with electroplated bits,more heavy duty and wear resistant.High-quality core steel body helps to be more efficient and durable,not easy to deform,you could drill smoothly with no broken edges BulletPoint5 : [Machine] --angle grinder (direct connection) or electric drill (with adapter ).Aluminium portable suitcase included. For easy carry and storage and protect of the core bit.Recommended RPM is 6000; Maximum RPM is 11000 Color : Blue CompatibleMaterial1 : Plastic CompatibleMaterial2 : Glass CompatibleMaterial3 : Stone CompatibleMaterial4 : Porcelain CompatibleMaterial5 : Ceramic CompatibleMaterial6 : Wood CompatibleMaterial7 : Marble CuttingAngleString : 60.0 degrees ExternallyAssignedProductIdentifier : 8252431749870 ExternallyAssignedProductIdentifier1 : 611138969895 ExternallyAssignedProductIdentifier2 : 0611138969895 ExternallyAssignedProductIdentifier3 : 709730188469 ExternallyAssignedProductIdentifier4 : 616183105779 FinishType : Brass ItemName : Diamond Core Drill Bit Set 11pcs Diamond Hole Saw Kit for Porcelain Tile Ceramic Marble Granite Stone,6/6/10/25/35/38/50/65mm +2" 5/8-11 Diamond Beveling Chamfer Bit +3/8" Diamond Finger Bit + Adapter ItemPackageDimensions_Height : 33.0962 centimeters ItemPackageDimensions_Length : 11.4046 centimeters ItemPackageDimensions_Width : 19.812 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : hole-saw-sets Manufacturer : PaWuKi Material : HSS Material1 : Diamond Material2 : core steel ModelNumber : 4c05a215-476c-43f5-98e6-91ffa723d7dd NumberOfFlutes : 2 NumberOfItems : 11 NumberOfPieces : 11 NumberOfPieces1 : 5 NumberOfPieces2 : 1 NumberOfPieces3 : 4 PackageLevel : unit PartNumber : PWSET11 ProductDescription : You could use our diamond tipped drill bits for bathroom remodel,includes installing faucet,handles,shower plumbing,shower doors,conduit,grab bar,brackets in porcelain for both hooks and glass shelves,hang towel fixtures.or thread power wires through cement,make holes in the bottom of plant pots,or install garbage disposal button, soap dispenser and filtered water through a granite counter. Using our bit for cutting the accurate holes without cracking, Cool it with water while drilling could prolong the lifetime. USER TIP: For a better finish and longer duration of the porcelain tile drill bit.you could start on a slight angle at its lowest speed for better control, then slowly move the drill back to perpendicular. The average life of the tile hole saw depends on several factors,including the type of aggregate and material, its thickness/hardness ,proper cooling and use. This is the ideal diamond drill bit for rock, DIY ,ceramic workers, construction workers, general contractors and tradesmen. All our products are subjected to strict quality tests.