Oudtinx Diamond Drill Bit Set, 10 PCS Glass Hole Saw for Tiles Glass Ceramic Marble Bottles DIY,6mm - 30mm

• SMALL RESISTANCE: Small incision resistance, opening speed is quickly, easy removal of chips and other advantages.Also help to open accurately. Large chip holes to ensure that when the punching smooth, punching accurate.
• DURABLE: Nickel-plated with a diamond dust coating offers superior performance and cutting strength.Extended service life.This diamond drill bits are high quality and good performance that excellent for making clean and accurate hole.
• IDEAL FOR: This diamond coated core drill bit removes a complete circle from glass, marble, tiles,granite, ceramic or other.Reduced drill speeds, low drill pressure and increased use of water lubrication will extend drill bit life considerably.
• TIP: Can be used with a standard electric drill (not included), Always use lubrication (water), otherwise the diamond core drill will burn. Warnings: Not for use on Concrete or for depths beyond about 1/2"; Water is required for lubrication when drilling.
• 10 SIZES: Total 10 different sizes (6mm,8mm,10mm,12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 30mm).Different sizes meet your different needs,help you in different places.

Diamond Drill Bits, are also know as Diamond Core Drill Bits, Diamond Hole Saws or Bonded Diamond Drill Bits. They are often called Glass Drill or Tile Drill, but they are much more versatile since they are used to drill glass, ceramics, porcelain, ceramic tile, porcelain tile, limestone, slate, marble, granite, light stone, and fiberglass. Features: - This is a brand new product - This diamond bit core drilling removes a complete circle glass, tiles, marble, granite, ceramic or other material and only needs water for lubrication - Can be used with a standard electric drill (not included) - Easy to use, high quality, good performance, long life - Excellent for making clean and accurate hole on glass, tile and marble - Always use lubricant (water), otherwise the diamond core drill will burn - Start the hole diagonally, make a round trace and then hold drill drittoSpecifica Specifications: Model: 10 Pcs 6mm -- 30mm Size: 6mm / 12:23 ", 8mm / 0.31", 10mm / 0.39 "to 12mm / 0:47", 14mm / 0:55 ", 16mm / 0.62" 18mm / 0.7 ", 20mm / 0.78", 22mm / 0.86 ", 30mm / 1.17" Note: If you smell burning, back off! Either your speed is too high or the pressure you're applying is too much. You're drill bit should never be hot to the touch, not even warm. - Slowest speed - Coolant - Minimum pressure The general rule is the smaller the diameter of your drill bit, the faster drill speed you can use. The harder your material, the slower drill speed you should use. Packaged included: 10pcs Diamond Coated Hole Saw Drill Bits