[pianotech] Size of Pinblock Drill bit?

[Ron Nossaman]

On 3/6/2013 5:12 PM, Dean May wrote:
> the friction resistance torque of the pinblock is the friction force
> times the radius of the pin. So for a given interference friction, the
> larger diameter pin will have more resistance torqe.

Yep, and less tendency to flagpole. Life's little trade offs...
Ron N