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Jun 30, 2022 - 4:48:32 AM

kd8tzc

USA

392 posts since 4/11/2022

So I picked up a reamer.... it is a general wood reamer that comes down to a very fine tip, but them up to about 1/2". I know I need to cut this down, but about what diameter do I want to make the cut? Approx 5/16"? A little bigger than that? The Gotoh 5th string peg is about 3/8".

Jun 30, 2022 - 6:32:42 AM
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RB3

USA

1359 posts since 4/12/2004

I would suggest that you make some tapered holes is scrap pieces of wood with the reamer as it is now, so that you can test the fit of the tuner in different size holes. That should allow you to determine the best dimensional characteristics of the tapered hole and it should help you determine the optimal length of the shortened reamer.  Ream thrice; cut once.

Edited by - RB3 on 06/30/2022 06:37:32

Jun 30, 2022 - 6:54:11 AM

kd8tzc

USA

392 posts since 4/11/2022

quote:
Originally posted by RB3

I would suggest that you make some tapered holes is scrap pieces of wood with the reamer as it is now, so that you can test the fit of the tuner in different size holes. That should allow you to determine the best dimensional characteristics of the tapered hole and it should help you determine the optimal length of the shortened reamer.  Ream thrice; cut once.


Well, as I said, it starts at a point, so that won't work I know as it would bottom out in the 5th string tuner hole if I were to try it there.  Thankfully when I bought the reamer, it came with two, so I think what I will do it cut it at about 5/16" and then make some sample holes as you say and try to fit the tuner into that.  I know I have to cut something off, I was just trying to get a ballpark of where to start.

Jun 30, 2022 - 7:22:54 AM

13439 posts since 6/2/2008

What's the best way to cut a reamer? I bought one at Harbor Freight a while back and still need to do this?

Jun 30, 2022 - 7:23:29 AM

mbanza

USA

2495 posts since 9/16/2007

The Stew-Mac reamers are about 0.330" or 21/64" at the small end.

Jun 30, 2022 - 7:41:18 AM
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kd8tzc

USA

392 posts since 4/11/2022

Thanks mbanza .... okay, so I was in the ballpark it sounds like.

Old Hickory , I'll either use a cutting wheel or just a hacksaw that can cut through hardened steel.

Jun 30, 2022 - 8:02:30 AM
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1712 posts since 7/2/2007

Cutting off the reamer depends on what tools you have, I'd expect them to be too hard for a hack saw but I'd try that first. If you have a small right angle grinder I'd use an abrasive cut off wheel. You can get cut off wheels for a Dremel but plan on having several cut off wheels for that (they break easily) and it's more than the tool was designed for but would work. If you have a bench grinder you could hog the end off and clean it up on the grinder after the major metal removal is done. Wear safety goggles!

Jun 30, 2022 - 8:40:50 AM
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512 posts since 2/6/2011

I agree with RB3 . I think he is suggesting you take a scrap piece of wood that is maybe 1"
Drill with a hole that's a bit smaller than the smallest diameter on the tuning peg, then use the reamer until the hole fits the tuner.

Jun 30, 2022 - 11:33:37 AM

13439 posts since 6/2/2008

Thanks for the answers on tools for cutting a reamer. I have a hacksaw, Dremel, and safety goggles and can easily get additional cutoff wheels.

Jun 30, 2022 - 11:36:07 AM
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kd8tzc

USA

392 posts since 4/11/2022

Ken, just for your info, I was able to cut mine with a little work with a cutting wheel on my dremel.

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Jun 30, 2022 - 1:21:39 PM
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banjonz

New Zealand

11475 posts since 6/29/2003

I have had my Stewmac reamer for years. I needed to purchase another one but with a narrower profile to ream out holes for the cheapy Asian flat spline pegs. I purchased a reamer from my hardware store then after measuring it for this job, I used my Dremel moto-tool with cut-off discs to shorten the shaft. It works a treat.

Jun 30, 2022 - 1:42:22 PM
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14730 posts since 6/29/2005

When I cut off the one I use, I measured the end of a 5th string tuner with a caliper and made the cut-off end of the reamer a tad smaller than that so the peg would get a bite.

The tuners are not all the same size—some, like Golden Gate ones, are smaller, so you would need a different reamer for those. 

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