How to bore a tapperd hole in a piece of 3/4" thick board.
Feb 25, 2024 09:59:59 #
I would like to bore a hole in a piece of 1x8" which is 3/4" thick. The hole should be tappered. The large side is 2.5" the smaller side would be 1.5". What is the best way to do this? I have hand drill, jig saw. I don't have good wood working tools.
Feb 25, 2024 10:16:56 #
Maybe drill a 1.5" hole, mark the 2.5" diameter on the larger side, carefully use a rat-tail wood rasp at an angle to remove the wood enlarging the hole????
Feb 25, 2024 10:44:53 #
A beveling chamfer bit or a countersink could get you close, but I don't know if you can get one that big...
Feb 25, 2024 10:45:08 #
Feb 25, 2024 11:48:45 #
BebuLamar wrote:
I would like to bore a hole in a piece of 1x8" which is 3/4" thick. The hole should be tappered. The large side is 2.5" the smaller side would be 1.5". What is the best way to do this? I have hand drill, jig saw. I don't have good wood working tools.
Do you have a way to drill a 1.5" hole through the wood? Then drill a 2.5" hole just slightly into the wood? Then you can file the step in-between to be at the right angle.
That requires a drill press because you want the 2.5" hole to be centered on the 1.5" hole. It's really tough to center two holes by hand.
Your best bet if you don't want to buy the tools is to find a woodworker to do it for you.
(If you do it yourself, you should consider getting several more pieces of 1x8" stock to allow for multiple attempts).
One possibility is to get a 1.5" and a 2.5" Forstner bit. You drill a small pilot hole, then drill a shallow 2.5" hole centered by the pilot hole. Then turn the wood over and drill the 1.5" hole through centered by the pilot hole. Then you use the file to taper the hole.
The forstner bits can be pricey. A woodworker might have them on hand and charge less for the job than buying the bits for a one-time project.
Rough Sketch
Feb 25, 2024 12:17:08 #
Feb 25, 2024 13:06:01 #
DirtFarmer wrote:
Do you have a way to drill a 1.5" hole through the wood? Then drill a 2.5" hole just slightly into the wood? Then you can file the step in-between to be at the right angle.
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If one did the shallow 2.5" dimple first, wouldn't there be a center mark to continue with the 1.5" hole? That would have both drill centers aligned.
Feb 25, 2024 14:30:49 #
BebuLamar wrote:
I would like to bore a hole in a piece of 1x8" which is 3/4" thick. The hole should be tappered. The large side is 2.5" the smaller side would be 1.5". What is the best way to do this? I have hand drill, jig saw. I don't have good wood working tools.
Go to Amazon and type in "tapered bits for wood".... You will have enough 'hits' to spend a rainy afternoon with a glass of good bourbon...
Feb 25, 2024 16:02:48 #
Longshadow wrote:
If one did the shallow 2.5" dimple first, wouldn't there be a center mark to continue with the 1.5" hole? That would have both drill centers aligned.
Yes, you could drill the pilot hole for the 1.5" bit using the dimple.
But you don't want to drill the 2.5" far enough for the dimple to go through 3/4"
Feb 25, 2024 16:28:02 #
DirtFarmer wrote:
Yes, you could drill the pilot hole for the 1.5" bit using the dimple.
But you don't want to drill the 2.5" far enough for the dimple to go through 3/4"
But you don't want to drill the 2.5" far enough for the dimple to go through 3/4"
Correct, the dimple is just to mark the size for the larger opening, not drilled into the wood.
But doing so would provide the center mark for the smaller hole to keep the holes aligned.
Feb 25, 2024 16:33:23 #
Longshadow wrote:
Correct, the dimple is just to mark the size for the larger opening, not drilled into the wood.
But doing so would provide the center mark for the smaller hole to keep the holes aligned.
But doing so would provide the center mark for the smaller hole to keep the holes aligned.
I would recommend drilling the small hole from the other side rather than the same side as the large bit. A forstner bit will sometimes mess up the wood around the exit of the bit so it's better to have the bit exit within the board in a spot that you are going to file away rather than leave a messy hole on the surface of the board. So you want a pilot hole to mark where the small bit has to start cutting.
Feb 25, 2024 16:47:50 #
DirtFarmer wrote:
I would recommend drilling the small hole from the other side rather than the same side as the large bit. A forstner bit will sometimes mess up the wood around the exit of the bit so it's better to have the bit exit within the board in a spot that you are going to file away rather than leave a messy hole on the surface of the board. So you want a pilot hole to mark where the small bit has to start cutting.
Or use a backing board....
Feb 25, 2024 17:01:56 #
Buy a cheap hole saw kit. Mark your spot for the hole. Drill the 2.5 inch hole till the surface is slightly scored. Flip the wood over and completely drill the 1.5 inch hole. Use a rasp to enlarge the hole from the 2.5 inch side.
Feb 25, 2024 22:47:13 #
Feb 26, 2024 08:04:27 #
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