Package Includes:Hole Saw two 15/64" (6mm),5/16" (8mm),3/4"(19mm),1"(25mm),1-3/8" (35mm),2"(51mm),2-15/16" (75mm), 3-15/16" (100mm);125mm emery slicing,50mm chamferer,25mm thumb drill,1 M14-HEX,1 M14-SDS. Easily store and carry our hole saw tool kit in our storage case Wide Application:Diamond drill bits can be widely used for dry or wet drilling of porcelain tiles,granite, marble,stone, masonry and other similar materials.Not for wood,glass and any metal material.Diamond milling bit and chamfer bit cannot be used for drilling,just for enlarging,trimming or beveling holes Chip Removal Design: Specially designed holes on both sides of the drill for fast chip removal and drilling efficiency Premium Kit Combination:Core drill bits are used to drilling holes; finger bit for enlarging holes; chamfer bit for trimming holes. Dry or wet use. Wet drilling with less debris for longer life.If you want to use on electric drill, there have SDS or HEX handle adapter Recommended Machine:Angle Grinder. Recommend RPM: 6000. Faster the RPM, longer the drill bit's working life. If you fit them on hand drills, you can use hex adapter.And don't use hammer or impact mode 14pcs Diamond Hole Saw,Hole Saw for Granite,Marble,Masonry,Concrete,Tile/Ceramic,Glass