I need to cut a 3/4" hole in a piece of engineered flooring. The hole needs
to have very clean and sharp edges.
Harbor Freight sells a diamond hole saw set for 6.99 (# 32399). Will a
diamond hole saw make clean cuts in wood, or will it chew up the edges of
Is there anything that would work better than a diamond hole saw? An auger
bit or a Forstner bit?
I'm not expert, but I'm pretty sure that diamonds are used on
materials that need to be abraded (e.g. metal, stone), while wood
needs to be cut for a clean edge. I think your best bet is a sharp
I agree with Wayne. A Forstner bit is the right tool for the job.
I used one to drill 1" holes in my bamboo floor for water lines
(dishwasher and ice maker) and power (stove). It made a nice sharp
hole in the bamboo (which is harder than any domestic hardwood).
a diamond bit will burn a hole. i think a regular hole saw will work
better. a forstner bit would be the thing, but only if you have a
drill press. A brad point is another good option. even a spade bit,
the kind with the leader points on the sides would probably work OK.
I just did a bunch of flooring.
I used a new spade bit and the holes look fine.
A forstner or even a wood boring bit would work too.
I wouldn't use a hole saw because they tend to walk until the saw part
starts to actually cut.
I don't know if they make one in 3/4", but a plug cutter could work.
Do you really expect anything from Harbor Freight to give you a perfect
hole? I wouldn't.
A diamond saw will not work well in wood. Go to Lee Valley's website and
order yourself either a
3/4" Forstner or brad point bit. The forstner will mandate a much steadier
hand (or drill press) but should give
you a superior hole.
I bought the HF Forstners in a weak moment. They didn't even have an edge
or any sharpness to the lead edge of the tooth. Save yourself the headache
and follow the suggestions of the others - especially the suggestion to
drill half way and then, complete the hole from the other side. You will
need to have your drill straight so the the intersection of the 'two' holes
is accurate or you will have a ridge in the center.
That's why I recommended buying a quality bit from Lee Valley. I will buy a
bunch of stuff from HF for the stuff I don't need precision or long life.
In fact, all my vehicles have a set of tools by HF. I won't buy stuff
where I need precision or quality results (ie. drill bits, chisels, etc...).
If you're lucky, the flooring is not yet down. No matter what type of
drill bit you use, drill only half way down and then flip the board over
and finish the cut. This will avoid splintering as the bit completes
I've used a diamond hole saw on wood and it does work, but slowly (about 1
minute for 3/4" pine. The top of the hole was cleanly cut, but there was b
lack scorching inside the hole, and a rough exit hole. I made a video of a
ll of this on youtube. You can watch it here:
replying to clare, ThriftyTani wrote:
Someone wanted to drill a hole in marble, but also needed to cut a hole through
the wood that was underneath it. He wanted to know if he needed spend an extra
$10-25 on a wood hole saw just to cut 1 or 2 holes.
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