I also prefer to stop and clean flukes of drill/tap periodically.
If particularly tough, I may do 1/2 to 1 turn with tap,
then back it out, clean, and relube.
Using grease, lard, etc on drill bit as well as tap will also keep filings out of internals. Seems I get a cleaner thread cut if I take the extra time to clean--but may just be me and my imagination, lol.
In my experience, if forced too fast or with pressure, it really sucks to extract a broken bit or tap, tho not impossible.
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Today's Featured Article - Recollections of a John Deere GP - by Charlie Cook. I grew up on my dad's 280 acre general farm in Western Michigan. Dad's only tractor when I was very young was the old GP. My first recollection of this tractor was when dad allowed my brother and myself to ride on the tractor with him driving. One of us would sit on the left fender (away from the clutch) and other would sit on the gas tank and hold onto the crankcase breather pipe.
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