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Rear Peghole Reamer

5.0
  • 40 Reviews
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Rear Peghole Reamer

Item # 2059
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$18.74

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Rear Peghole Reamer

About This Item

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

Here's a tip from our luthier friend Bryan Galloup: Grover 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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5.0
  • 4.93 average rating from 40 reviews
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5.0

The perfect tool

By

Verified Buyer


This was the perfect tool to upgrade my stock Epiphone tuning machines with press in bushings to Grovers with threaded bushings. I am glad I bought it.

5.0

Excellent product

By

Verified Buyer


This worked perfectly to enlarge the holes for the new Grover tuners I was installing. Zero chipping, very clean hole. I have the 6 holes drilled and the new tuners installing in minutes.

5.0

Highly recommended

By

Verified Buyer


I will echo what everyone else has said-this tool is indispensable for what it does. I used it to enlarge pegholes on an Epi LP Jr. from 8mm to 10mm to upgrade the tuners. If you need to enlarge pegholes to accommodate modern sealed tuners, use this, and follow others' advice and go slowly with it.

5.0

Game Changer

By

Verified Buyer


As a guitar repair tech in my spare time, this tool is a game changer. No more reaming out the tuner holes by hand. This makes short work of the job of putting new tuners on. and the fit is perfect every time. Thanks!!!

5.0

works great

By

Verified Buyer


I was worried since I've never done this before and the dimensions didn't seem exactly right but it worked great. No fancy drill presses, just my hand drill. Quick and easy!

5.0

Worth The Money

By

Verified Buyer


Being a little nervous about reaming the headstock of my SG for a new set of Grover Tuners this tool was well worth the money, worked perfectly on my drill at slow speed drilling straight larger peg holes to insert my new tuners. have two other guitars it will be used on

5.0

Excellent and necessary tool.

By

Verified Buyer


I added Grover Vintage tuners to my Les Paul and the peghead needs a 10mm hole for the nut in the front and a 0.397" hole for the tuner itself on the back of the headstock. Using an electric drill on very low speed, the reamer self-guided and worked perfectly. The correct depth (for a Les Paul) is when the guide tip just reaches the front of the headstock. Just go slow and let the tool do the work.

5.0

knuckle head saver

By

Verified Buyer


I haven't used this reamer yet but it sure will help y stubborness, I was finishing up a guitar I made and thought as last time just use two different bits and get the job done like always. always didn't work on this peg hole the bit grabbed the wood on drill for the tuner sleeve and drill completely through, not just once but twice, I was able to lack a repair and finish the build. Thanks StewMac for all the help.

5.0

Rear peg hole reimer

By

Verified Buyer


This little gadget works like an absolute charm!

5.0

Amazing

By

Verified Buyer


I could not find direct drop-in replacement tuners that I liked for an Epiphone Casino Coupe headstock, so I eventually landed on Grover 135 series and needed this reamer to open up the peg holes.

It is incredibly easy to use, and you do not need a drill press to use this although it is recommended. I used a regular drill, and if you have one that can handle bits 3/8" or larger and can drill slowly, you'll be fine. Slowly is the key word here. Once the top of the reamer is flush/ level with the headstock face, you're good to go.

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StewMac PDF Catalog, page 20 See Rear Peghole Reamer
on page 20 of our StewMac Digital Catalog