On 2012-03-29, Wild_Bill <wb_wi...@XSPAMyahoo.com> wrote:
> Yep, and for marking gaskets or other applications, transfer screws will
> mark material with the hole centers.
>
> Sets of transfer screws/hole spotters could easily be made from hex head
> screws or other hardware/stock.
>
>
http://www.transferscrew.com/products.html
Yes -- but for some gasket marking -- cork or cardboard, the
best way that I know is to place the material over the flange to be fit,
and place a hardened steel ball (from a large ball bearing) over the
hole. (Pick one at least twice the diameter of the hole.) Then strike
it with a hammer, which punches a neat hole. Drop in a bolt to hold the
location, and do the same with another hole (say diagonally opposite).
Keep adding bolts to keep it aligned until you have all made and
anchored. Then use the rounded end of a ball-pein hammer to trace the
inside of the irregular holes and outside of the flange.