Barry,

If this were a small quantity of boards, I'd probably use a regular high
speed drill and throw the drill bit away when I'm done as the board material
is abrasive and will ultimately dull the bit.

For large quantities of boards a carbide bit is preferred.  It lasts much
longer and can withstand a larger range of bit speeds.

As for a drill press, use what fits the board and bit size and is clean
(free of grease and oil).  I've used large floor mounted drill presses and
small "Unimat" style drill presses. Sometimes it's simply a matter of what
do you have that will work.  The Yankee in me will keep from buying
unnecessary equipment if I have something that works for the short run.

Phil Nutting
Manufacturing Engineer
Kaiser Systems, Inc.
High Voltage Power Supplies That Work(tm)
126 Sohier Road
Beverly, MA 01915
ph: 978-922-9300
fx: 978-922-8374
[log in to unmask]

-----Original Message-----
From: Barry Gallegos [mailto:[log in to unmask]]
Sent: Friday, January 26, 2001 9:09 AM
To: [log in to unmask]
Subject: [TN] Drilling through Assemblies



Good day to all.

We have accepted an order of PCB's to assemble for a customer. this customer
has requested that we make some modifications to the boards that they are
providing. the want for us to Drill several holes in the board to insert
some through hole components into.

my question is this. is there any special type dill press that we should
use, or any special type of drill bit. what speed should the drill run at
and any other special precautions that I should be aware of.


Barry Gallegos, PE
Western Electronics, LLC

1550 South Tech Lane
Meridian, Idaho 83642
Phone 208-955-9771
Fax 208-955-9751

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