Notes:
1. Dry drills with specifications above 8MM (6MM diameter dry drills do not need to be cored). When use the drill bit, cores are required for every 1-3 holes drilled.

2. Do not use an electric drill with a speed lower than 2000, or will affected the service life of the drill

3. During using the dry drill, no need to add water to the ceramic tile, besides, the drill body heats up into steam to cool the drill bit, so do not use cooling water.

How to drill clean and precise holes：

1. Star Drilling the hole with 45 degrees angle to the surface can prevent the drill slipping

2. Slowly move the diamond tip drill bit into a more up-right position and wobble the drill bit in the circular motion

3. Not need to apply much pressure, jut let the drill bit do the job, you will see the drill bit break through the glass or tile after the hole is completed drilled.

4. Please take care when using drill bits as can glaze and burn out if using too fast

Package included:
4PCS Dry Diamond Drill Bits