In this video I'm going to drill through
this tough granite tile. Granite is
actually one of the toughest natural
stones that you can get.
To do the drilling we're going to use this which is
a JCB diamond tech hole saw.
A few years ago I actually bought a cheap
diamond coated hole saw from Ebay and
that was just to drill through a ceramic tile
and it wouldn't actually cut through ceramic.
So you do have to be very careful where
you buy these from. I would recommend
getting a decent made like this.
We are now just going to open the packet
and on the inside is a set of
instructions. It's not actually obvious
that there are instructions printed on the inside.
So that's the bit and that is an 8mm one.
So I'm now going to pop
on a pair of safety glasses
I'm then going to insert this into the drill.
If you've never used a drill bit
like this before
these are quite difficult to get started
these are actually a diamond coated
hole saw and you can actually buy a
special jig for holding these if you
are struggling getting the hole started.
To start these off you get the bit like so,
and start it rotating, touch it down on the
surface until it bites in and then
stand it upright you can actually cut a hole.
The actual instructions for this do state
that you do need to dip it in
water every five seconds that will give
you the maximum amount of life from your bit.
The makers of this bit also recommend
oscillating the drill as you are cutting the hole.
So that's the tile we're going
to cut through that is at least 10mm
thick and that is polished granite.
I want to start off by dipping
the drill bit in some cold water
as you could see that cut through there
very quickly indeed. So that's how to
drill a hole in a tough granite tile.
In the next video I'm going to do a test to
see how many holes we can actually get
from this one drill bit because that
will be very interesting to see.
These kinds of bits are normally classed as consumables.
You would use these to cut
a set amount of holes and then
dispose of it.
I hope you found this
video useful if you have and you haven't
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