Thread: Trepanning Tool
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[email protected] mkoblic@gmail.com is offline
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Default Trepanning Tool

On Sun, 31 Jul 2011 12:54:12 -0400, William Bagwell
wrote:


Recently had several hundred 4" diameter X 1/8" thick *galvanized* disks laser
cut. Was *way* cheaper than I could have cut them with a hole saw even if I
paid myself minimum wage.

That particular shop only had punches to 3 1/2" so I did not get to compare
prices of the different techniques.

There are also online retailers that sell plain steel disks in various sizes
and thickness. Costs were higher but lacked the minimums and lead time of the
local shop. No galvanized and the shipping was outrageous on the few I bought
to hold me until the local order was done.

http://www.wagnercompanies.com/disks_and_plates.aspx

Is the vendor I used, curiously they do not show a 2 1/2" in 3/16".
2 3/8" and 2 7/8" are both offered in 3/16" thick so perhaps it is just missing
from the list?


Interesting, thanks. It gives me a guideline what to expect. The
prices relate well to prices of washers which is my benchmark of
expected costs (1" washer which has OD of 2.5" costs about $1.10).

The problem as you mentioned is the shipping which will be a multiple
of what you paid and the fact that they ship UPS.

Still, as Gerry suggested one should look for a stamping shop.

Michael Koblic,
Campbell River, BC