Custom Boring Bit Needed

J

JHC

Guest
WANTED - A boring bit that will bore holes in material as pictured below. I would like the bit to have an adjustable stop (collar or sleeve with set screw) so the 13/16” countersink won’t go deeper then 1/8”. The point of the boring tool needs to have a pilot point and on the other end a shank that will fit a 3/8” Jacobs chuck.


If you can make me a boring bit like that and willing to do so, please contact me.

J. Cockrell
Jhc168@netzero.com
 

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jhc

If you would like contact Gary Mueller at Missouri Tool company in Fenton, Missouri. www.missouritool.com 636-343-4545
He can make anything you would like.
His equipment goes from to 10 axis you name the material.
I think Gary has well over 60 years experience.
Centerfire :)
 
Thank you Centerfire, I will contact Gary. I’ve been building reloading tables for my reloading friends and where possible I like using Tee Nuts and Machine screws instead of wood screws. It’s just stronger and the Tee nuts will never pull out. Each table requires at least 24 Tee Nuts and each hole drilled has been a three step process. If I can find someone willing to make me this bit, it sure will save a lot of time.
 
JHC said:
Thank you Centerfire, I will contact Gary. I’ve been building reloading tables for my reloading friends and where possible I like using Tee Nuts and Machine screws instead of wood screws. It’s just stronger and the Tee nuts will never pull out. Each table requires at least 24 Tee Nuts and each hole drilled has been a three step process. If I can find someone willing to make me this bit, it sure will save a lot of time.
Click to expand...

We have used a bit for one of our operations in the past just like you describe. We were drilling on wood. It is a two piece bit affair that has the smaller bit going through the larger bit. The larger bit is attached to the smaller one with a set screw. I will check and see where they come from and get back to you. It was affordable.

Concho Bill
 
Try a holesaw

A 13/16" holesaw with a 5/16" pilot bit would work. A 5/16" drill with a 1/4" shank should fit the holesaw arbor. You'd have to pop out the "slug" left in the wood with a chisel, but it's easy to do.

A 13/16" counterbore with a 5/16" drill bit pilot would also work.
 
I found what you are looking for, almost.

It is called an Adjustable Counter bore.

Ballew Saw & Tool Company in Springfield, Mo. (800-228-7483)

They have a counter bores in 3/4" and then they jump to 7/8". These will fit a 5/16" bit through the center and will lock with a set screw. I am sure that this will work with a strong 3/8" drill even though it would work better in a drill press.

The part number is 62309 for a 7/8" X 5/16". This does not include the smaller bit. Give them a call.

Concho Bill
 
JHC,

Do you have any furniture manufactures in your area? Especially, wood chairs? If you know someone who works there, they will have the bit you need. They generally just throw them away after a week or two in the machine but would still last you a lifetime for what your doing. T-Nuts are generally used for holding seat cushions on. Check with some local tooling shops that cater to the wood industry, they will also have them. If you don't find what your looking for, PM me and I can get you the names and numbers of a few places that might help you out. I live very close to the wood capital of the world for funiture.

Hovis
 
Thanks guys for the tips and leads. I'll check them out. MSC has a CHAM-BIT HSS 90 degree Adjustable Countersink that is almost like what I'm looking for. Except the 90 degree counter sink is 5/8" instead of 13/16" and there is no adjustable stop ring.

There are no furniture shops here in my neck of the woods that I know of where I can obtain any used bits or information where to get a new one.

The cutter size needs to be at least 3/4" for a tight fit and not over 13/16". I need the adjustable stop ring because the Tee Nuts need to be exactly flush with the top surface. These holes are being bored using a hand drill with a 90 degree guide attached to it. The work piece is just too large for my drill press that has a stop. My hand drill guide also has a stop but it really doesn't work very well.

Right now Ballew Saw & Tool Company in Springfield might be my best bet. I'll give them a call tomorrow.

Thank you again for all your help.
 
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