Filing hammers

[Ric Brekne]

File with a strip of sanding paper the width of a single hammer, and 
count your pulls so that you can keep consistant for each hammer.  Use 
3M's polishing and finishing grits... the stuff that Andre sells.... you 
will love it.  Just the right hardness on the backing.  Lasts forever 
and works dynamite.

Cheers
RicB

Hello list.

I have a newbee question.
I use to file hammers who need it this way : I put a wooden support 
between the backchecks and the stack, under the hammers tails, and use a 
whole sheet of sanding paper with kind of fabric flexible structure to 
gang-file about 15 hammers at the same time, using my right hand to tear 
the sheet and my left one to put some pressure on the hammers, always 
tearing in the same direction, starting with grit 60 down to very fine.  
I get always nice horizontal hammer crowns but the two outer hammers in 
the gang, who always end up oblique, no matter how much care I develop 
to avoid this.  Of course, I then rectify those two individually, but 
they end up with smaller hammer heigth.
Is there some solution to this problem that obviously flew over my head ?

Thanks in advance for anything but cynism.

Stéphane Collin.