[pianotech] Size of Pinblock Drill bit?

[Mike Spalding]

Nubbed?  By hand?  more detail please!

thanks

Mike Spalding

On 3/6/2013 4:46 PM, Jim Ialeggio wrote:
> Interesting bit (haha) make that idea I got from Bruce Clark and Jason
> Andino at the Haverhill WNG training class:
>
> First pass 1/4" drill of the type you prefer, I'm using a fast spiral
> so I don't have to take 2 or 3 plunges to clear the bit. Then for the
> second pass, by hand, fast spiral "nubbed" bit. Doesn't grab and pull
> through, and doesn't beat up the start of the hole.
>
> Jim Ialeggio
>