Hobo,NC

Well-known Member
Location
Sanford, NC
I brought these at a auction yesterday for $2.50 can anyone tell me how to tell what size they are. All I have been able to find are numbers like this that are still in there original coating I had to scrap it off to find these numbers.. That look like chit all but one is new.

8N%20STARTER%20TOOL%20003_zps1uglgroi.jpg


8N%20STARTER%20TOOL%20004_zpscdhri2tg.jpg
 
I can't see the numbers clearly in your picture, nor can I tell the relative sizes of the reamers, but at the risk of stating the obvious, is the one you're showing 0.542" in diameter?
 
I've never figured out what the numbers mean, I assume they are mfgs part numbers.

You could measure the reamer, drill a 1/64th under hole in mild steel, ream slow with cutting oil, then check with gauge pins, see what size hole it makes.
 
(quoted from post at 08:11:39 02/20/17) I can't see the numbers clearly in your picture, nor can I tell the relative sizes of the reamers, but at the risk of stating the obvious, is the one you're showing 0.542" in diameter?

I don't remember what it measured but it was not in the neighborhood of .542 they run my best guess from about 5/8" to 1 1/2"
 
The metal box and same size shanks lead me to think it was probably a maintenance department set. For what who knows. You could contact SEMCO and ask for the
tool specs. They may or may not share the info depending on who the original customer was.

What other types of tools were sold on the auction? That might help narrow down what the reamers were used for.
 
Most new reamers I have seen came in two-piece plastic sleeves.

Reground/sharpened cutters often are returned to the customer with the wax like coating in your pictures.

Either way, you got a good deal if you have a use for them.
 
Most reamers have the size etched into the shank when new. After a while some are impossible to read. I mic over the flutes even if I can read the size. It's a time and material saver safety deal. Reamers are to give an exact diameter holes.
 
I think its a military stock number. I don't think they will share the data with you.Id just measure what you got and go with it
Byron
 
Adding to Steve's comment. Drill 1/64 undersize up to 1/2 diameter. For 1/2 to 1" drill 1/32 undersize. Drilling too far under will actually cause the reamer to cut an oversize hole.
 
(quoted from post at 23:52:18 02/20/17) I think its a military stock number. I don't think they will share the data with you.Id just measure what you got and go with it
Byron

Could be there was a lot of military parts at the auction along with a assortment of junk.

One thing for Y'all to look out for they had 4 chairs like this made out of aluminium they were not shinny they brought $300 a piece :shock:

https://www.1stdibs.com/furniture/s..._H5FQQ2uGS2QJ29-wo6753SlMb9Q84ot5IxoCg2Lw_wcB
 
I see the set Number but that is as far as I can get with it. When I get time I will clean them up and measure them.
 
When you try/use them NEVER turn them backwards, don't let a lot of chips build up and pack into the flutes, and use plenty of oil. And when backing them out keep turning
them, don't pull them straight out.
 
(quoted from post at 20:32:14 02/21/17) When you try/use them NEVER turn them backwards, don't let a lot of chips build up and pack into the flutes, and use plenty of oil. And when backing them out keep turning
them, don't pull them straight out.

8)
 
They look like core drills to me , they
were used to open up castings that had
cast holes , should have angled cutting
edge at start ?
 
I have a set like those. Mine are
stamped from .500-1.625. They do cut
very well. I use them on cast iron,
dry, but slow rpm. Just measure the
flutes and stamp them or marker them.
 

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