Specification Brand : HGQiviut BulletPoint1 : 【Diamond Hole Drill Bit Set】Dry diamond core drill bits kit size of 7pcs 1/4” (6mm) precisely tackle a wide range of drilling tasks. These drill bits make precision work on various materials a breeze. BulletPoint2 : 【1/4 Hex Shank】Diamond Core Drill Bit Set are designed with hex shank to prevents slippage while working and allows for quick changeover and is suitable for most drills, rechargeable drills, hand wrenches and driver chucks. BulletPoint3 : 【Dry Drilling Design】Porcelain tile drill bits built-in wax lubricant that can help to cool and prolong the service life of the drill bits. They can melt and cool the cutting surface during dry drilling; Water can be used as additional cooling for long-time drilling. BulletPoint4 : 【Vacuum Brazed Technology】These Drill Tile Hole Saws Vacuum Brazed use Vacuum brazing diamond technology, offers very high efficiency. They can cut hard tiles, ceramics, marble and slate at higher temperatures. BulletPoint5 : 【Wide Application】Vacuum brazed diamond drills are worked great for dry drilling holes through granite, marble, masonry, concrete, tile/ceramics, glass, hard plastics, etc. CompatibleMaterial : Diamond ExternallyAssignedProductIdentifier : 6181963702898 IncludedComponents : 7 x1/4” (6mm) diamond drill bits ItemName : 7 PCS 1/4"(6mm) Dry Diamond Drill Bits Set, Porcelain Tile Drill Bits Set with Hex Shank, Diamond Drill Bits for Porcelain Granite Tile Glass Ceramics Marble ItemPackageDimensions_Height : 0.79 inches ItemPackageDimensions_Length : 3.15 inches ItemPackageDimensions_Width : 2.76 inches ItemTypeKeyword : hole-saw-sets Manufacturer : HGQiviut Material : Diamond NumberOfItems : 7 PartNumber : drill bit 07 ProductDescription : 【Diamond Hole Drill Bit Set】Dry diamond core drill bits kit size of 7pcs 1/4” (6mm) precisely tackle a wide range of drilling tasks. These drill bits make precision work on various materials a breeze. ProductSiteLaunchDate : 2025-05-07T03:40:14.758Z Style : HIGHDRIL Diamond Beveling Chamfer Bits and Hole Saw Kit SupplierDeclaredDgHzRegulation : not_applicable UnspscCode : 27110000