Wrnchbndr
Wholenote
Posts: 353
Formerly Known As: WRNCHBNDR
|
Post by Wrnchbndr on Jan 20, 2020 13:36:39 GMT -5
Any suggestions for drilling holes for position markers way up in the dusty part of the fretboard?
Actually, I'm working on mandolin fretboards and the frets get stupid close to each other. In this situation, I'm pushing the limit but I really want to do what I have in mind. The problem is that I get tear-out with the persimmon fretboards I'm using. I often get tear-out with a 1/4" new drill bit. But when I'm drilling for a position marker on a slotted fretboard and the fretslot is only 1/8" away from the edge of the position marker, its a mess. Forstner bits generally don't go smaller than 1/4" and these markers that I'm using are about 5/32".
|
|
sirWheat
Wholenote
For a better future, play Stevie Wonder for your children.
Posts: 319
|
Post by sirWheat on Jan 20, 2020 14:08:22 GMT -5
Brad point bit? Are you using a dummy piece over the fretboard to try to reduce the chip-out?
|
|
|
|
Post by Peegoo 🏁 on Jan 20, 2020 14:41:41 GMT -5
Spur bit. The center point locates the bore, and the spurs establish the diameter before wood is removed. Makes razor-sharp bores in wood. Look:  |
|
McCreed
Halfnote
Posts: 76
Formerly Known As: Mick Reid @ FDP
|
Post by McCreed on Jan 21, 2020 2:38:25 GMT -5
You just happen to have that on file Pee?  |
|
DrKev
Wholenote
It's just a guitar, it's not rocket science.
Posts: 416
|
Post by DrKev on Jan 21, 2020 9:23:28 GMT -5
How is a spur bit bifferent from a regular wood bit?
|
|
|
|
Post by Peegoo 🏁 on Jan 21, 2020 10:05:51 GMT -5
Standard twist drills are fine for wood and softer metals. These are the ones you commonly find in hardware stores. They have a conical point:  |
|
