Hey everyone, I've got a quick question and I'm hoping you can point me in the right direction. I need a 4mm End Mill Bit (with a 3/8 shank) for a very specialized cut that I need to make into glass. I'm sure its going to be pretty hard to find a metric bit with an english shank size...so I suppose a 5/32" (3.96875 mm) bit would work as well. Luckily the cut only needs to be .08mm (0.0031496063 inches) deep so we're talking a very shallow cut (which should hopefully make the glass easier to deal with.)

But yeah, I'm just wondering if anyone happens to know any good places I can order such an odd bit because I haven't been able to find anyplace on my own. Thanks a bunch.

I buy most of my stuff from US shop tools. They carry a bunch of unusual stuff, and if you don't see it in the cat they can get it. there are a thousand other suppliers on the net too, KBC, ENCO, Travers, etc etc.

I love KBC too as their packages seem to arrive within two days, time after time, that is one tight shipping dept they have there.

kbc has english shank metric bits in hss but if your cutting glass you may need carbide-not sure on the need or the availability of those bits in carbide

Thanks for the info guys, I'll have to check out US Shop tools and KBC and see if they have what I need.