What size drill bit for peg string holes?
I have several sets of undrilled pegs. What size bit do I need to drill the string holes?
Yeah, but what size drill bit do I need?
Getting a drill started on a convex surface on hard material is not easy. Especially with a narrow bit. You need to start the hole with some kind of center punch or something and you need to expose very little bit length at the start, and you need some kind of jig to hold the piece very securely on the table of your drill press. Doing even a halfway job on this is harder than it sounds. Good luck getting the hole to go through the center and perpendicular to the peg.
Yes- I've been away looking at bits- someone on Fiddle Hangout mentioned 1/16", which we all know is 1.5 mm - or at least I knew actually that 1/8" is approx. 3mm, and so divided by 2- 1/16" is about 1.5mm-a little big but probably workable.
I also use a 1.5mm bit (1/16" after Brexit) in a hand held pin-vise that you twizzle with your fingers rather than crank a handle. Vise and a set of 30 bits cost £7.59 with same-day delivery from amazon.co.uk!
You can go to your local hardware store or Home Depot to buy these small bits and they are only a few dollars each. I do not work on my own violin but these thin bits can break quite easily if you are not extremely careful when drilling with them.
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