BGTEC Diamond Core Drill Bits Set - 10pcs Tile Hole Saw Kit 6/8/10/25/35/50/65mm with 10mm Diamond Finger Bits and 2" Chamfer Bits for Porcelain Ceramic Tile Granite Marble - DBT05S18T58AC

• 【Proudcts】10pcs in total,7pcs(6/8/10/25/35/50/65mm) Diamond drill bits,1pc 10mm Diamond Finger Bit,1pc Diamond Chamfer Bit and 1pc 5/8-11 to SDS Adapter 【Application】Dry/wet drilling for porcelain tile, granite, marble, stone... 【Diamond Chamfer Bit】Enlarge, shape and/or round bevel existing holes in Porcelain, Hard Ceramic, marble and granite 【Vacuum Brazed diamond technology】 Provide very high efficiency,cuts faster,durable and sturdy 【Machine】Anger grinder. lf you want to use electric drill or other machines, you can use SDS or Hex Shank Adapter. Recommended speed 6000RPM, maximum speed 11000RPM.