[pianotech] Size of Pinblock Drill bit?

[Steve Jackson]

I find .250 works well with that block and Diamond #2 pins.
Denro pins and that block may not be the best choice.

Steve

> I searched my not inconsiderable archives for an answer, but have come up
> empty-handed. I am using 1/0 Denro blued tuning pins in a new multi-lam
> Maple pinblock, and need to order the drill bit. I'd like to double-drill
> -
> makes sense. The Pianotek catalog recommends, in effect, a drill bit .016"
> to .021" under the diameter of a 2/0 pin in a multi-lam pinblock.
> Following
> that logic, I could use the .250" on the first pass, and the .261" (.015"
> under) or .257" (.019" under) drill bit on the second pass. Also, I like
> the idea of the brad-points, but also like the idea of the other ones,
> which are "slow spiral."  Any recommendations?
>


-- 
http://stevejacksonpianos.com