Features:

100% Brand New and High Quality
Diamond Holesaw 6mm-45mm Tile ceramic glass porcelain marble drill
Diamond dust hole saws are suitable for drilling ceramic tiles， glass， marble， slate and porcelain tiles up to hardness grade 5
For use with conventional power drills on the lower speed settings with the hammer action disabled
For always use lubrication (water )， otherwise the diamond core drill will burn
Cooling and Lubrication
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.
Using water as a coolant/lubricant will substantially extend the life of these hole saws.
If you\'re drilling on a vertical surface try a hand spray water bottle， or sponge soaked in water and held underneath， but in contact with the drill bit. Keep the bit as wet as possible during operation， if the bit dries out during use it will overheat and immediately blunt.


Specification

6mm(0.24inch)
8mm(0.31inch)
10mm(0.39inch)
12mm(0.47inch)
16mm(0.63inch)
18mm(0.71inch)
20mm(0.79inch)
22mm(0.87inch)
25mm(0.98inch)
30mm(1.18inch)


How to use your Holesaw

In an ideal world your piece of work should be clamped firmly to a bench to allow for slow controlled drilling. Of course sometimes that\'s just not possible， so if you\'re drilling in situ or at an awkward angle try the following:
1. Make a template from a piece of timber or waste material， locate this over the area where you want to drill your hole and use it as a "guide" to start the hole. Once you\'ve got into the surface by 1mm to 2mm you can remove the guide and continue to drill in a controlled manner.
2. Start your hole diagonally， make a round trace and then hold drill straight.



Package Included:

Full 10 pcs Set （include 6mm 8mm 10mm 12mm 16mm 18mm 20mm 22mm 25mm 30mm)