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Cobravenom 03-15-2014 10:28 PM

Drilling a hole in stump to recess tuna can
I need some help. Need to recess a tuna can as perfectly as possible into a stump. Filling it with live mealworms for the bluebirds is the goal of this project. I've been told a hole saw will work but I'm not so sure that's going to accomplish what I have in mind. Would a Forstner bit be a better option? I just need something to attach to my drill that will cut this piece out!!

fotoburger 03-15-2014 11:44 PM

A forstner bit the size of a tuna can will cost you a pretty penny, plus will not handle safely without a drill press. You would be better of with a multitool from Harbor Freight (or Fein or Dremel or Bosch etc)and nailing or screwing the empty tuna can to the place you want and cutting around the can. After you have cut the circle, you can then cut straight lines inside the circle, and then with a screwdriver or chisel you can bend each row until it snaps, and then dig it out.

iminaquagmire 03-15-2014 11:52 PM

That big of a forstner bit wont be cheap. Neither will the holesaw which won't remove the core of wood from the stump. Forstner would be better but hard to find that big. Can't you just screw the can onto the stump?

dftc 03-16-2014 02:35 AM

I would probably draw the outline and then drill several smaller holes to the same depth to take out most of the material. Then just finish it up with a chisel.

You could consider a plunge router also, but you would need to spend time making (or money to buy) a circle cutting jig to get a good result. It might not even be worth the effort for a project like this.

A hole saw can get you the outline you want, but you would still have to remove the material in the middle.

As others have said, a forstner bit that big would cost way too much and it wouldn't work well outside of a drill press.

joecaption 03-16-2014 04:44 AM

And even if you did bore it out you would just end up with a rusty metal can that will fill up with water every time it rained.
May be better off with something plastic like the bottom of a 2 liter bottle or peanut butter jar, drill a couple holes in the side for drainage and screw it to the stump.

oh'mike 03-16-2014 06:20 AM

If you have a router, that could be done safely ---

make a round template the size of the hole---then use a straight cutting pattern bit with a top bearing---

tack the template to the stump---route out the center of the opening--then set the bearing against the template to finish off the cut----

Cobravenom 03-16-2014 08:16 AM

I'm a pro with carpet tools and a newbie with carpentry tools!
Sounds like the smaller holes and a chisel is my best bet! Ive never used anything outside of basic saws and bits. Screwing the can to the top of the stump will take away from the photos. I like to practice my iPhoneography! Lol

Thanks so much for your comments. Working on lattice and deck railing today. Figured while at Lowes if there's a tool to make things easier I could grab it.

kwikfishron 03-16-2014 08:39 AM


Originally Posted by Cobravenom (Post 1322648)
Figured while at Lowes if there's a tool to make things easier I could grab it.

Just pick up an inexpensive spade bit. It will remove quite a bit of material at a time, then finish it up with a sharp chisel.

IslandGuy 03-16-2014 09:13 AM

Take a chainsaw and slice 2 & 1/2 inches off the trunk. Take that slab and holesaw a tuna can sized hole right through it. Replace trunk slice. If you want to get anal chisel a drainage channel across the intact trunk, and leave a weep hole on the bottom of the can. I think cans are aluminum and won't rust.

JustinK 03-16-2014 10:48 AM

Soda/beer cans are aluminum. Food cans are tin. I would use a hole saw and chisel out the center will not be that hard and hole saws do not cost that much money. For under $10 with the arbor you can get this at Home depot

de-nagorg 03-16-2014 11:55 AM

I picked up a hole saw kit at one of those truck tool sales, for about $12.00, it has sizes from 1.5 inch up to 4.5 inch, just need to change the cup on the arbor to go bigger . that would work great for you. Then chisel out the concentric rings. And use something a bit less rust prone than a tuna can. Even a small Tupperware bowl would last much longer.


amakarevic 03-17-2014 04:39 PM


Originally Posted by Cobravenom (Post 1322571)
Need to recess a tuna can as perfectly as possible into a stump.

Just out of curiosity, why do you need to do that ?

kwikfishron 03-17-2014 06:05 PM


Originally Posted by amakarevic (Post 1323486)
Just out of curiosity, why do you need to do that ?

Read the next sentence. :)

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