Recommendations for a supplier of quality drill bits for glass?
I'm re-purposing some old, large filters and would like to drill some holes in them. I practiced on some scrap glass using 'glass & ceramic' drill bits that wore out almost immediately. I used drilling lube (Mobil 1), with no improvement over some thick conventional lube.
The largest filters are .53" thick (and 8.5" diameter).
Thanks if you can help.
Jac
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