First time using my 1” boring bar

[Janderso]

I bought this boring bar a while back, first time I had a need.
I’m making a spider for the back of my spindle.
It worked fantastic. Rock solid.
I used the Aloris standard CXA holder.
If you need one, I endorse this one.

 

[westerner]

Nice. I have learned just enough to realize that hitting your numbers with a boring bar is a step up from hitting OD numbers.
It is uniquely satisfying to me.
A great big 'ol boring bar is a help no other tool can provide.

 

[markba633csi]

Whip out your big 1 inch! LOL

 

[Dabbler]

can you provide details on the bar you bouight I cannot quite read the label... pls?

 

[benmychree]

Jeff, you should try out some of my Bokum boring bars, I have a liberal collection of them available, the ends screw onto homemade bars that you can make yourself, look them up online to get an idea of the design.

 

[Nutfarmer]

If you can find 1/4 inch round high speed steel blanks that style boring bar is easy to make. Making tool blanks out of broken drills or broken end mills works fine also. The square hole in the commercially available ones are harder to make. Ones for a round bit are a simple drilled hole at 90 or 45 degrees and a set screws to hold the bit in place.

 

[Janderso]

Jeff, you should try out some of my Bokum boring bars, I have a liberal collection of them available, the ends screw onto homemade bars that you can make yourself, look them up online to get an idea of the design.

John, I think we talked about those at one time. In fact I have two of the screw on tool bits ad I recall. I jus don’t have a bar.
I am most impressed with the rigidity Of this set up.

 

[Janderso]

can you provide details on the bar you bouight I cannot quite read the label... pls?

dabbler,
The McMaster part number for the 1” is 32435A18.
You know McMaster, they rarely provide the manufacturer in my experience.
The description says it can use 5/16” square or round hss bits.
One end has a 90 degree slot and the other has a 45.

 

[benmychree]

John, I think we talked about those at one time. In fact I have two of the screw on tool bits ad I recall. I jus don’t have a bar.
I am most impressed with the rigidity Of this set up.

You can easily make your own bar(s) out of plain old steel, alloy steels make no difference in ridgidity.

 

[Winegrower]

You can easily make your own bar(s) out of plain old steel

Yes, I did that with a 1” x 12” bar that was laying around, and broached a 5/16” square hole, with a screw in the end to hold the hss bit in. I milled some flats on it, held it in a CXA XL holder. This was free, and it is Really Rigid. Works perfectly.