How to drill 3 Inch Hole In Wood
How to cut a perfect hole in wood using a hole saw by EAB
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we're drilling holes through two by ten
lumber using the two three-eighths m42
Razorback hole saw
now this little saw is capable of
drilling holes through steel metal
products as well as wood but for today's
purposes we're using what as a matter of
fact this particular one is tested at
140 holes through 3/16 plate steel very
tough very long-lasting to use the hole
saw there are really two parts we have
the hole saw itself which is doing the
cutting and we have the mandrel which is
required with a drill point to hold the
hole saw in place you'll notice that
this is a spring-loaded mandrel just by
pulling back we retract the drive pins
which will hold the mat in the hole saw
in place all we need to do is starch
spread it in and we pull back on the
drive pins slowly bring it round and the
drive pins will automatically drop into
the holes we're now set to go we have
assembled the hole saw into the mandrel
you simply take the entire unit slide it
into the truck Chuck our drill
taking the jerky and we're set to start
right while we're going to drill a hole
all the way through the idea the hole
saw is that it will give you a
relatively smooth time we start off with
a pilot drill which is going to start
the hole and guide us into the wood
material starting at night you'll notice
this rock motions to help move our
sawdust out of the hole you'll also
notice that by starting nice and slow we
have a fairly smooth nice clean finish
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but underneath where we have burst
through we have a little bit of chipping
around the edge so I'm going to show you
how to get away from that we take a
screwdriver pop it into one of the slots
and you can pull out the floor now if I
was working on a very nice piece of
furniture that I wanted I needed to have
a smooth hole on both sides we will then
start our process drill halfway through
until the pilot drill comes through the
other side and we will flip the work
over reinsert the pilot drill and start
our cut from the other side so we'll go
like this
what now come through the underside now
if I'm working in a cabinet obviously
I'm going to have to work this from
underneath but the purposes today will
simply cheat a little so you can now see
this is where the pilot hole came
through all we have to do is align our
pilot drill into this hole nice and
clean there we are so we now have a nice
smooth cut on both sides of the both
sides of the material keep in mind too
that when you're using a hole saw
you're generally inserting some sort of
a cover so normally there is a trick
plate or a cover goes over top of this
hole so that will even that will make it
even better but you'll notice when I was
talking about going slowly where I
turned it to full speed well here's what
has a tendency to happen remember I was
saying we go slow when you turn it to
full speed it often has a tendency to
burn not important but what it does is
overheat your hole saw which
shortens the life
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