DT-DIATOOL Diamond Core Drill Bits Kit 8pcs/Set - 6/6/8/19/32/51mm with 35mm Diamond Chamfer Bit and SDS Adapter Hole Saw Kit for Porcelain Ceramic Tile Marble Granite -

Diamond Core Drill Bits wih Diamond Chamfer Bit Kit 10 package size Easy carry Diamond drill bits are packed in a portable aluminum box Full Sizes 6mm-51mm drill bits can be used for dilling various holes.Diamond chamfer bit helps enlarge, repair or clean the holes.sds adapter makes the drill bits can be installed on hand drill.

But don't use hammer or impact mode.Application Recommended material: ceramic tile>porcelain tile>marble>granite.Please don't use them drilling glass, wood, metal, etc.Diamond chamfer bit is not a drill, don't use it drilling holes.Vaccum Brazed Technology High quality diamond grain are firmly brazed on the matrix, which provide longer life and high efficiency.U Shape incision, reduce cutting resistance and improve drilling speed