BestBassGear.com is currently featuring an article on the importance of correctly drilling the headstock/pegboard holes. Here's an excerpt:
How to Build a Bass - Drilling The Headstock/Pegboard Holes
Articles
31-AUG-2015
Drill Bits
When building and drilling new holes in a blank, the most important thing is to have the right bit for the tuner you intend to install.
The ideal drill bit type is either a brad point or forstner; they are preferred for their accuracy and clean cut.
Hipshot 3/8″ Ultralite and Gotoh GB7 will fit properly into 7/16″ (14mm) hole. For the Hipshot Ultralite 1/2″, that will mount in a 11/16″ (17mm) hole.
As long as you are aware of the measurements to use up front, which you now are, you can drill the right size hole and know the tuner will fit.
Generally speaking, hole sizes for certain tuners will have a range of between 14mm to 18mm.
Read the entire article HERE.
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