T/Carbide tool should do it ;
as long as you do not expect too much from tolerances at this small punch .
Than keep an eye on regrinds as the slot will get hairy in no time without
regular tool maintenance ;
we did experience some coarseness on similar slots after some time .
And, when you design the tool ; curved cutting face >>>([] will do you
better than flat >>>][] ground ;
on both clean cut and material exit (like your binder paper hole cutter) .

Beats milling in the case ; you're right

paul

-----Original Message-----
From: [log in to unmask] [mailto:[log in to unmask]]
Sent: Monday, June 28, 1999 1:39 PM
To: [log in to unmask]
Subject: [TN] slot in pcb


Hello all,
Can you use a punch and die setup to stamp a slot in a PCB without causing
to
much damage?  The slot is .030 wide x .250 long.
Thanks,
KB