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Home : Tools : Reamers : Rear Peghole Reamer

Rear Peghole Reamer

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Counterbores the back of a 5/16"-diameter peghole to fit a Grover, Schaller or Gotoh sealed gear housing.

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Rear Peghole Reamer
Item# Description In stock Price Quantity
2059 Rear Peghole Reamer Yes

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For Grover, Schaller and Gotoh sealed tuners!
Here's a tip from our luthier friend Bryan Galloup: Grover, Schaller and Gotoh tuners with threaded bushings should be installed in counterbored pegholes. A snug 5/16" diameter at the top of the hole stops the bushing from leaning under string pull, thus helping to protect the lacquer finish around the bushing washers. At Bryan's suggestion, we developed this special slow-speed steel reamer that accurately counterbores the bottom of the peghole to fit the gear housing.

The reamer has a .310"-diameter (7.87mm) pilot and two flutes that cut a .397"-diameter (10.08mm) counterbore in a 5/16"-diameter (7.94mm) peghole. When the reamer's piloted end is flush with the face of the peghead, the correct counterbore depth has been reamed.

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 Ratings and reviews
Rear Peghole Reamer
Rear Peghole Reamer
5 out of 5 stars
Based on 30 ratings Write a Review
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Displaying 1 – 10 1  2  3 >
5 4-03-2014
Well worth it!

I hesitated before I bought this because of the price, but once I tried it I really liked it and now seriously recommend it. What used to be a tedious task has now become a breeze. Very accurate and easy to use.

Turko  San Diego Read my reviews (6)
5 1-05-2014
Can I give this 6 stars?

This reamer is the perfect tool for upgrading an older guitar to a newer set of tuners. I used this bit on a very old Squier Strat. As mentioned by some other reviewers, use this bit slowly and you will have no problems at all with chips and tears. I used a small piece of scrap oak on the face of the peghead and used a cordless drill. Very slowly and smoothly, this bit cut out the perfectly sized holes for new tuners. When the bit hit the scrap wood on the other side, it stops cutting. This bit is an absolute must for ANYONE who does upgrades to older, less expensive guitars. Great job, StewMac! This item is a true winner!

Gregory Wolff  Virginia Read my reviews (2)
5 8-22-2013
This Peghole Reamer ROCKS!

This is perfect for upgrading to the fender sealed tuners. The Squier low end guitars have awful tuners and this makes the upgrade clean and easy! Get one!

Johnny Rocker  Albuquerque, NM Read my reviews (2)
5 2-15-2013
A MUST-HAVE for retrofitting tuners

I bought this tool several months ago as I do quite a few tuner upgrades. It was an "investment" I will never regret. I've done four 6-strings already using it. If the headstock is already drilled, just clamp a piece of scrap wood to the front and go!! That simple. Though I still use a chamfering tool to get the tool started and break the finish edge, this tool is self-guiding and self-stopping. As long as you're not an idiot and try to go 900 mph with it, you CAN'T make a mistake. It's as idiot proof a tool as I have ever owned and a real time/guess work saver too. Highly recommended.

bbrich57  Austin, TX Read my reviews (5)
Customer supplied image for review
5 1-01-2013
Excellent tool!!

I'm currently building my first guitar, which is an SG clone. (The kit that I bought didn't specify what tuners the manufacturer intended for use, so I jumped the gun and bought a set of Grover Deluxe Keystones.) Anyway, after the tuners arrived, I quickly realized that I'd need to open up the pre-drilled holes in the headstock. I ordered this tool, and in five minutes I had the proper rear counter-bored holes in the headstock, and my tuners fit perfectly.

ElectriCapricorn  SoCal
5 11-28-2012
The Right Tool

Exactly the right tool for upgrading Squier (and such like) pegheads from those rickety 1/4" shaft gears to cast tuners!

Tom Sawyer (really!)  Vernon, CT Read my reviews (9)
5 10-19-2012
Rear Peghole Reamer

Great product and easy to use.

DannyUGP  Georgia Read my reviews (2)
5 8-22-2012

One word. Nice!

Randolph Guitars  Welch,OK Read my reviews (2)
5 8-22-2012
Must have item when installing Grover tuners

I bought this item in preparation to install Grover tuners on my acoustic guitar as a beta test to ultimately install Grovers on my Les Paul. A forum post on clearly explained how to use the reamer and to NOT use a drill but a T handle hand drill instead. Being a little nervous about cutting into a perfectly fine headstock, I started slowly on the first hole. By the sixth hole, it was a piece of cake. Just take your time. The reamer performed perfectly and the Grovers installed without issue. It is a bit pricey however it is absolutely necessary. Shipped and received quickly.

Fast Robert  Indy
5 8-01-2012
Sharp & accurate

I tested the bit on a few scraps and it performed as others reported - sharp and accurate with no tear-out. It performed well on the actual product as well - very nice tool.

tb  Portland OR Read my reviews (50)
Displaying 1 – 10 1  2  3 > /\ Top of Reviews

Shown on page 21 of our latest catalog.
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