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Hole quality looks OK, after drilling 28.5" deep hole, tool is still sharp. Oil temp and the foam give me some heartburn though.

I don't get to see the oil on the intake side but I do see it on the exit - my chip box has a plexiglass top. At the start of the hole it's foam free but it soon starts to change color and look a bit "foamey". It takes ~ an hour to drill to depth. At full depth, its quite foamey and HOT. My...

Current (and most problematic) hole is 0.212" dia. Depth is 136 X dia. Single flute carbide drill. Drill stem is hollow, pressurized oil pushed down middle, out the cutter, then back up and out via a deep crease in the tube, chips separated in a chip box, filters etc. Shop built / cobbled...

Deep hole drilling, 400 ~ 1200 psi oil pressure, using Fuchs deep hole drill oil. Seeing more foam than I'd like, especially at higher pressures. Need the pressure to flush the chips out. Anyone using an anti-foam additive that they like ?

Thanks for that ! I think I'd just have "Winky" make up some belts for me - I have enough other projects and his pricing seems relatively cheap. Now, to see if he'll ship to Canada.

So, recently purchased a KO Lee Tool & Cutter Grinder (B360 model). Works fine and I'm enjoying having it. However: it's the older flat belt type, I only got one belt and 6 or 8 flat belt pulleys with it. The one belt I got has seen better days and I'm thinking I should find more flat belts or...

I've bought several endmills off AliExpress -- ZGT is the only brand name I have experience with, there's probably others that are as good. Only metric sizes available, I have metric collets. 10 ~ 25% the cost of North American or European brands (varies with size) and just as good. Somewhere...

I use a file as a backer for emery cloth on the lathe -- Left handed -- most of my files have golf balls for handles -- actually, quite comfortable.

Nailed it again ! My wife and I ran our own business 35+ years - moderately successful - but when you have some success, you also become a target for jealousy, resentment etc. Biggest reason I see though is far lower input costs in general in the Asian countries - and there's over a Billion new...