[pianotech] More agraffes...kind'a

[Ron Nossaman]

On 8/21/2012 7:37 AM, Jim Ialeggio wrote:
> Ron said:
>
> <So does spinning your spot facer in the counter bore to clean it out
>
> What's a spot facer? an endmill?

A piloted counter bore, used for making a fastener head bedding surface 
perpendicular to a hole that is not perpendicular to the surface. Google it.

http://www.yardstore.com/browse.cfm/2,410.html
http://www.iowa-industrial.com/Eastern-Iowa-/Construction-Equiptment-/One-hss-spot-facer-1-5-16-diameter.cfm

Ron N