Shark PreFiling

[Ron Nossaman]

>The Ronsen Company order sheet has an item "Hammerheads Prefiled."
>
>Does this refer to felt removal or tapering grand heads to avoid collisions
>and/or reduce mass?
>
>Alan Barnard


When hammers are sliced apart after pressing, the (hopefully) internal 
compression makes the edges flare out. This leaves a cup down the center of 
the outer surface of the hammer, including the strike point. Prefiling just 
removes the cup and squares the outer surface of the hammer to the sides. 
It has to be done, whether they do it before you get the hammers, or you do 
it afterward - either before or after hanging them. That's all it is.

Ron N