Dry Diamond Drill Bits Set 6 PCs Small Diamond Hole Saw Kit for Granite Marble Porcelain Tile Ceramic Stone Glass Hard Materials (not for Wood) Round Shank 1/4, 5/16, 3/8, 1/2, 9/16, 5/8 inch

Our ceramic diamond core drill adopts vacuum brazing technology, so the drill can cut harder materials at higher temperatures.

It is very suitable for drilling clean holes in similar materials such as granite, ceramics, glass stone tiles and marble tiles (not suitable for wood) When decorating kitchen or bathroom walls or fixing mirrors or installing showers in bathrooms, you need to drill holes in mirrors or tiles without cracking them, so you need to use these diamond drills to make these holes very accurate.

Specification: Color: blue Material: carbide Shank Type: Round Shank Steps to drill clean and precise holes: 1.

Place the drill at a 45 degree angle, so the drill has the chance to start and will prevent the drill slipping 2.

Slowly move the drill bit into a more up-right position and Continue to drill and swaying the machine along a circle 3.

You don't need to apply too much pressure to let the drill finish the work Once the drilling is completed, you will feel the drill break through the back of glass or ceramic tile 4.

Be careful when using because if you use it too fast it may burn a little glaze and burn out Package includes: 1 x Bits diameter of 1/4 inch (6mm) 1 x Bit diameter of 5/16inch (8mm) 1 x Bit diameter of 3/8inch (10mm) 1 x Bit diameter of 1/2inch (12mm) 1 x Bit diameter of 9/16inch (14mm) 1 x Bit diameter of 5/8inch (16mm)