Broke a chamber reamer this afternoon.

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bearhunter

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I broke a brand new chamber reamer this afternoon.

I've done this once before and it's frustrating to say the least.

22 Hornet, I was feeding it to fast.

There isn't very much metal in the center of these small reamers, and they just don't have the strength of larger diameter reamers.

Lots of lube and the reamer was sharp, it all felt good and I was advancing it at a normal rate, no binding or felt interference which would indicate an issue.

I should have been more careful. I broke the last one the same way appx 15 years ago, for the same reason.

Patience pays off, and I was thinking about other things while doing the job. Not a good combination.

Such is life.

Now to order another reamer, as the barrel is undamaged otherwise.

Grrrrrrr.
 
bearhunter said:
I broke a brand new chamber reamer this afternoon.

I've done this once before and it's frustrating to say the least.

22 Hornet, I was feeding it to fast.

There isn't very much metal in the center of these small reamers, and they just don't have the strength of larger diameter reamers.

Lots of lube and the reamer was sharp, it all felt good and I was advancing it at a normal rate, no binding or felt interference which would indicate an issue.

I should have been more careful. I broke the last one the same way appx 15 years ago, for the same reason.

Patience pays off, and I was thinking about other things while doing the job. Not a good combination.

Such is life.

Now to order another reamer, as the barrel is undamaged otherwise.

Grrrrrrr.
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PTG Reamer?
 
156821 said:
Well that sucks. Sorry about your luck.
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Thanx but luck didn't have much to do with it. Just poor practice on my part. I will be much more careful with the next one.

I've seen reamers with chips out of the edges, often caused by the angle of the cutting edge being to severe or trying to cut to deep without withdrawing the reamer to clean off the chips.

This one just shattered without warning. Usually a sign of feeding to fast and maybe to much chuck speed.
 
bearhunter said:
Thanx but luck didn't have much to do with it. Just poor practice on my part. I will be much more careful with the next one.

I've seen reamers with chips out of the edges, often caused by the angle of the cutting edge being to severe or trying to cut to deep without withdrawing the reamer to clean off the chips.

This one just shattered without warning. Usually a sign of feeding to fast and maybe to much chuck speed.
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Although I have never had the opportunity to do such work I do appreciate you posting about this. Store that in the memory bank for future use.
 
In my toolchest I have a .243 reamer I chipped on first use. I've kept it for over 25 years as a reminder of what not to do.

Don't know if it was the same supplier, but I got a modestly priced 9mm reamer from the Ukraine via amazon. Had to stone the pilot for a specific job, didn't want to alter the reamer I already had. Worked fine, cut a decent chamber.
 
bearhunter said:
No, it came out of Ukraine. About half the price of anything in North America and it was very good quality. I have a couple of reamers from the same manufacturer. They do very good work and the reamers take ten days from ordering to my doorstep.
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Was taking a guess at ptg as they are known to have issues. Manson gets me reamers pretty quick. Jgs are also good.
 
tiriaq said:
In my toolchest I have a .243 reamer I chipped on first use. I've kept it for over 25 years as a reminder of what not to do.

Don't know if it was the same supplier, but I got a modestly priced 9mm reamer from the Ukraine via amazon. Had to stone the pilot for a specific job, didn't want to alter the reamer I already had. Worked fine, cut a decent chamber.
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I measured the pilot on the reamer before even attempting to use it, as well as the bore.

I had a Manson reamer with a live pilot, which was oversize. I called them about it and they sent me another reamer, no questions asked, and neither did they ask to have the first reamer returned. I sent them an email with pics showing the Mitutoyo micrometer on zero and measuring the pilot. Very decent people to deal with.

If I were going to purchase a reamer for multiple jobs, and was willing to wait for the customs people to find it in the pile a month later, I would have purchased another

I've got a couple of PTG reamers and they're very good quality. They stay sharp and cut well.

I've gone to these Ukrainian reamers for "one off" jobs or maybe a couple chambers. My other 22 Hornet reamer is a "D" style, which I made myself but it's worn out. I could probably go through the effort of moving it all back up the stem, but I'm just not into it at this point in the game.

"D" type reamers only have one cutting edge and extreme care needs to be used, or you get to make another reamer very quickly.

I have a 9mm, 380acp and a 6.5cm reamer from these folks and they work perfectly. I won't have them for long, a young fellow, just starting out will be their new owner. Both of them were fine for the jobs they did.
 
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