I've used these in my CNC mill setup. The tiny ones are fragile as hell,
as would be expected. Plus it's mix-n-match - you can't guarantee what
sizes you're going to get, so if you program for one - break it - then
oops! The .050" units and above I've had pretty good luck with.

Still, I find them useful (finally). HF isn't the only supplier, these
are available from a variety of places. The price in your link is pretty
agressive from what I've seen in the past. If the freight is low, not
much of a loss.


jw said the following on 1/17/2006 12:12 PM:
Has anyone here used these:

http://www.harborfreight.com/cpi/cta...emnumber=34640

They appear to be endmills or at least some sort of sidecutting bit.
Is this true?

I would call HF, but I don't expect whomever answers the phone to know
much more than what is already listed on the website/catalog.

Background info: I have a small CNC mill (Roland CAMM3), that I have
FINALLY gotten around to proving actually works. Now that I have done
so, I would like to make some stuff with it. It is a benchtop
modeller, and is designed for small bits. I could buy the bits from
Roland but they want a lot of money. I don't expect that these are
going to be "top-end", but if they get the job done they would be cheap
enough to break a few.

I would like to do some cut PCBs and also cutting some shapes in
plastic sheet(see recent thread in relation to that).

Thanks everyone

JW