I just saw a cool video on You tube where the guy made his own Tormach tool holders for his X3. He used 1 1/2" dia. tool steel 3 inches long. One end is turned down to 3/4". What he didn't say was how long the 3/4" dia. section was, how long is the flange and how long is the tool holder section. He also didn't mention the dimension for the set screw(s).
Does anyone have those dimensions?