Diamond Drill Bit, Hole Saw Drill Bits Tools Set for Glass/Tile/Ceramic/Marble/Porcelain Cutting, Hollow Core Drill Bits Cutter with Diamond Coating, Carbon Steel 8mm-50mm 10 PCS

• HIGH QUALITY DIAMOND DRILL BIT SET with RUSTLESS, CUTS QUICKLY - Made from high strength carbon steel with nickel plating surface makes these drill bits durable and precise; The bit's tip head is made of 80 grit diamond coating, which is uniform; It great helps to increase the drilling speed and more sharper than other ordinary hole saws
• 10 PCS MOSTLY USED SIZD - Includes the following diameters 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 25mm, 50mm; Using laser marking, the size will meet most of your different needs.
• APPLICATION - Suitable for use in drill hole on glass, marble, tile ,blocks jars, fiberglass porcelain tile ceramic, slate mable, granite light Stone etc. Will work with all electric drill and impact drill.
• NICE DESIGN - The center pilot holes and side holes help to remove the waste material easily;And surface nickel plating, extend the service life, enhance the surface corrosion resistance
• Kind Notification - When cutting hard materials it is important to ensure the cutter is kept cool to avoid damage to the material being drilled and premature wear of the cutter; Water is required for lubrication when drilling, which can extend the life of the drill bit set

Diamond Drill Bit, Hole Saw Drill Bits Tools Set for Glass/Tile/Ceramic/Marble/Porcelain Cutting, Hollow Core Drill Bits Cutter with Diamond Coating, Carbon Steel 8mm-50mm 10 PCS DIAMOND DRILL BIT: Diamond drill bits ,or diamond core drill bits, diamond hole saw or bonded diamond drill bits. They are often referred to as glass drill or tile drill, but since they are used to drill glass, ceramic, porcelain, tile, ceramic tile, limestone, Slate, marble, granite, stone and glass fiber light, so they are more general. PRODUCT FEATURES: Material: Steel Hole Saw Diameters: 8mm/0.31", 10mm/0.39", 12mm/0.47", 14mm/0.55", 16mm/0.63",18mm/0.71", 20mm/0.79", 22mm/0.87", 25mm/0.98", 50mm/1.97" Application: Suitable for stone, tile, ceramic, glass and granite processing. Good performance, long service life. Very suitable for glass and ceramic tiles make clean accurate holes. An electric drill work better (not included in the project). INTRUCTIONS: 1.Diagonal start your hole, do a round of mark, then drill. 2.Always use lubrication (water), or diamond drill will burn. 3.Through the concrete and tile cutting, it is very effective. There are the smallest heat and it will not damage the drill. PACKAGE: 10 x Diamond Drill Bits