6.5 cm diamond hole saw for porcelain and ceramic tiles, sink drains and granite countertops. 6.5 cm hole saw for shower installation, 6.5 cm glass hole saw.

2.5" Diamond Hole Saw Without Pilot Drill Bit – We do not use pilot bits in our 2.5" diamond drill bit because pilot bits chip and wear out faster than the 2.5" diamond-tipped hole saw itself, so they quickly become useless.

Using the drill guide means the hole saw will last longer, the 2 3/8" diamond hole saw won't jump on tiles, and you don't need to start the diamond drill bit at an angle that creates an uneven oblong hole.

2.5" Diamond-Tipped Drill Straight Hole Guide.

The 2.5" diamond drill guide kit is suitable for use on tile or granite countertops.

The drill guide will keep the 2.5" diamond-tipped drill bit stable so that you get the hole for the shower hose exactly where you want it with the template without skipping or starting at an angle and ending up with an oval hole.

6.5 cm diamond hole saw kit with hole saw guide allowing the 6.5 cm diamond-tipped drill bit to drill a clean hole in glass, mirror, or tile.

With the 6.5 cm diamond drill bit holder, you can even use the 6.5 cm diamond drill bits for ceramic pots or plates for arts and crafts.

You must keep the diamond drill bit wet; 70 mm is the perfect size for tap holes.

These 6.5 cm diamond-tipped drill bits are capable of drilling through ceramic tile, porcelain tile, granite countertops, and even glass tile, but they must be kept wet and cool at all times, or you will burn them.

Remove the drill bit from Every 10 to 20 seconds, dip the diamond teeth in water, then rinse the hole with water. This will keep the bits fresh and make them last longer. Large diamond teeth: Our 7.5 cm diamond drill bit is ideal for porcelain tiles because it has larger diamond teeth than ordinary 6.5 cm diamond drill bits. We use large diamond grit instead of diamond dust on our diamond hole saws so they cut better and last much longer than the old disposable style with grooves around the edges.