3/8" Tee Bolts for Atlas Mill Table

One of my early jobs on the milling machine in my apprenticeship was making T nuts for the various shop machines, including the horizontal boring mills with 3/4" tapped holes, I also made a lot of studs for them too made of 4140 HT steel, this on the turret lathe.
 
OTmachine said:
Why, then would you deburr it so heavily to reduce the number of threads? Not deburring leaves 4 threads, (.250/.0625), and this is for a quick, down and dirty setup. Just sayin.
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A full deburr would likely remove one thread on each side, or nearly so.
 
I have an old shaper block from a small shaper that had been scrapped. I got it to use as an angle plate for my RF30 40 years ago. I had to get smaller T-nuts for my 3/8 clamp set that I used on the RF30.

I also have a base from a "drill press adapter" units that mounted one of the old "arm breaker" portable drills. It has T-slots that fit the common Bridgeport clamp sets, and comes in handy. One of these days I'll make 30 and 45 degree bases for it.
 
Provincial said:
I have an old shaper block from a small shaper that had been scrapped. I got it to use as an angle plate for my RF30 40 years ago. I had to get smaller T-nuts for my 3/8 clamp set that I used on the RF30.

I also have a base from a "drill press adapter" units that mounted one of the old "arm breaker" portable drills. It has T-slots that fit the common Bridgeport clamp sets, and comes in handy. One of these days I'll make 30 and 45 degree bases for it.
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That arm was known as an "old man", because it took the place of a real old man, bearing down on the point of the ratchet drill with a board lever.
 
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