I was doing some drilling with my drill press yesterday, using an MT2 shank25/32" bit @ 300RPM (and plenty of cutting fluid). It was just for experimenting, as I have never used a bit that large before, and wanted to see how my new press would handle it.
Everything went well, except that the front (idler pulley to spindle pulley) v-belt (size M-25) would slip the idler pulley (spindle would stop) if I applied too much pressure. This meant that I had to peck at it, which isn't what I am looking to do.
So, as this is a used press, I considered getting a new belt, but it is hard locating an M-25 belt, especially locally, and even online (couldn't find one at mcmaster carr) From what I can tell, the M refers to the large width being 10mm, and the 25 refers to a 25" circumference. Would a 3/8" (9.52mm) belt work in this application?
What I would like is a belt that was less prone to slipping when I drill large-ish holes (13/16" is the size I will be doing a lot of in the near future). Would a cogged belt be a good solution for this? Any other less-slippy belt suggestions?