Subject almost says it all. Making a tube so I can splice two refrigeration hoses (manifold gauge hoses) together since nobody is willing to sell me the needed fitting to my 30 lb. bottle of R-134.
Start with 1/4" diameter by 2" long piece of air hardened steel. Put it in3 jaw chuck. Drill full length with an 1/8" drill bit. Try to cram it into the hoses, too big. Back into the 3 jaw, live center in tail stock, reduce the diameter, flip it end for end and reduce the rest to match. Clean up with a little piece of emery cloth. Project complete, except my hands are filthy black.
Tools are relatively clean. Chuck key is pretty clean. 1/4" rod is brand new. Why is machining so filthy? Does this happened to you guys also? Seriously, I could do a brake job on my truck and only get half as dirty!! What gives?