1-inch hole --

Burchtree

Burchtree

KnifeMaker & Moderator
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Well, I gotta make one. Any drill bit recommendations?
 
Just one hole? Might be easier to have a local shop do it for you,In the good old days a dozen donuts would do the job.
 
It'll probably start with one hole, but may do others -- it's going to be through 3/16 1080.
 
Make sure you clamp that steel down; especially important when drilling larger holes. ;)
 
Thanks fellows.

Danbo - I'd think drilling a 1-inch would make for some great "helicopter" action on the ol' drillpress. :eek: :D
 
I recommend an annular cutter. A 1" hole can easily and safely be cut with one, with very minumal cleanup of the hole. They are very clean-cutting and precise. Try McMaster-Carr part number 4093A54, and the arbor for this would be 4093A73.
 
I have always used bimetal holesaws, but they tend to leave quite a bit of roughness for cleanup. I have been told that Unibit drills do a very nice job.
 
I recommend an annular cutter. A 1" hole can easily and safely be cut with one, with very minumal cleanup of the hole. They are very clean-cutting and precise. Try McMaster-Carr part number 4093A54, and the arbor for this would be 4093A73.

AWWWW Jeff, your always recommending the right way....that's no fun..

Make a wax ring with a 1" inner circle and etch it in with nitric acid...Forget what those old fuddy duddys say! :footinmou :footinmou
 
At work, I use a step-bit or "uni-bit" to drill 1" holes. Works well, and leaves a clean edge. Definitely clamp the steel down, though, I have a scar on my palm because I didn't once.

-Dave
 
Then of course there's always the Larsen's Basement way: Drill around the perimeter, connect the dots with a jeweler's saw, and make it round with a file... You guys all do stuff the easy way!
 
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