09-08-2016, 04:40 AM
(This post was last modified: 09-08-2016, 04:43 AM by Mike E..
Edit Reason: After thought.
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(09-07-2016, 02:58 PM)Dr Stan Wrote: ................. The best cutting compound I've ever used for tapping in aluminum is pork lard. ...........................
" Lacquer Thinner " used as a cutting fluid in tapping aluminium will produce perfect razor sharp threads; also, it evaporates quickly leaving a clean hole. I've used it with fine results on tapping holes as small as 2-56 tpi. Learned this trick from a machinist at Lockheed aircraft back in the 1970's. Try it.