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Matching a hole saw and forstner bit

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Forum topic by ManawoodDesigns posted 03-27-2018 08:18 PM 587 views 0 times favorited 12 replies Add to Favorites Watch
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ManawoodDesigns

3 posts in 481 days


03-27-2018 08:18 PM

Hello! I have a project I’m working on that requires finding a hole saw that will leave me with a disk cutout that will fit in a 1.5” forstner bit hole…so far, the hole saws I’ve found dont end up with quite tight enough of a fit for my liking. Any thoughts?

Thanks!


12 replies so far

View Jeff's profile

Jeff

507 posts in 3615 days


#1 posted 03-27-2018 08:26 PM

Cut it larger and sand/shape to fit.

View John Smith's profile

John Smith

1885 posts in 583 days


#2 posted 03-27-2018 08:41 PM

I just purchased an oak round dowel that is exactly 1.5” thick.
it was in the furniture leg dept. at Lowe’s.
if you need 1.5” disks, buy one then cut it on your bandsaw or table saw.
if you use the table saw – it will be much, much safer to use a sled
or at least a zero clearance insert.
a chop saw will throw the disk into the yard next door if you are not careful.

.

-- I am a painter. That's what I do. I paint things --

View JayT's profile

JayT

6226 posts in 2631 days


#3 posted 03-27-2018 08:52 PM

To match with the precise size of a Forstner, you’ll need a plug cutter or have to make your own discs. Hole saws aren’t designed or manufactured to give a precise size.

-- https://www.jtplaneworks.com - In theory, there is no difference between theory and practice. In practice, there is.

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ManawoodDesigns

3 posts in 481 days


#4 posted 03-27-2018 08:56 PM

Thanks for the replies! I’ll further explain what the project is, which may help :-)

I’m planning to make a table. The legs are going to be natural driftwood, about 3” in diameter. I would like to cut a 1.5” hole through the table, then take a hole saw and drill the thickness of the table slab (2”) into the driftwood. Then I would cut the outside of the driftwood piece off, leaving me with a 2” high, 1.5” wide “dowel” on the top of the leg. Then I would put the leg through the hole and lock it in place with two wedges forming an X.

While I could concievably just cut it larger than I’d like and then shape it to fit, I’ll be doing more tables like this in the future and would rather just invest in a simple and foolproof method to cut the size I’d like.

I’m assuming there is probably a hole saw that leaves a 1.5” inner diameter to the cut, I just haven’t had any luck finding it.

View Woodknack's profile

Woodknack

12843 posts in 2800 days


#5 posted 03-27-2018 08:59 PM

How about one of these

-- Rick M, http://thewoodknack.blogspot.com/

View Nostradamit's profile

Nostradamit

41 posts in 1258 days


#6 posted 03-27-2018 09:02 PM

just take the pilot bit out but clamp down the work piece

View builtinbkyn's profile

builtinbkyn

2939 posts in 1361 days


#7 posted 03-27-2018 09:03 PM

I had one similar. It was probably the most dangerous thing I ever owned. Don’t know where it is now and don’t need to know lol

Second the idea of sanding to size if the fit needs to be spot on.

-- Bill, Yo!......in Brooklyn & Steel City :)

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ManawoodDesigns

3 posts in 481 days


#8 posted 03-27-2018 09:05 PM

Ahh that could definitely work! The issue I think I may run into with that is figuring out how to put a table leg vertically on my drill press…hmm. I would assume those wont work with a hand drill, correct?

I may actually just cut it with a larger hole saw and then turn it on the lathe.

View Loren's profile

Loren

10477 posts in 4068 days


#9 posted 03-27-2018 09:06 PM

You might want to look into tenon cutters sold
for rustic furniture making.

View John Smith's profile

John Smith

1885 posts in 583 days


#10 posted 03-27-2018 09:13 PM

aaaaahhhhhhhhhh – I see now.
I bought a round tenon cutter off of e-bay and it works awesome !!
but, for a “one off” project, it is a bit steep in price – unless you plan to use it a lot.


.

.

-- I am a painter. That's what I do. I paint things --

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jerryminer

957 posts in 1862 days


#11 posted 03-27-2018 10:37 PM

I suppose you COULD shape the end of a leg with a hole saw, but what you really want is a tenon cutter

-- Jerry, making sawdust professionally since 1976

View Woodknack's profile

Woodknack

12843 posts in 2800 days


#12 posted 03-27-2018 11:40 PM



Ahh that could definitely work! The issue I think I may run into with that is figuring out how to put a table leg vertically on my drill press…hmm. I would assume those wont work with a hand drill, correct?

I may actually just cut it with a larger hole saw and then turn it on the lathe.

- ManawoodDesigns

You turn the table 90 degrees and clamp to it but if you have a lathe, problem solved.

-- Rick M, http://thewoodknack.blogspot.com/

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