I was going to buy one of these and thread my pin to screw onto it. I'll use a 5/8 piece
of stock, thread the end female 3/8-16, then step it down to 1/2". Not sure if it is worth
it, just putting the guide pin in the chuck seems to be OK.
http://www.shars.com/mt3-3-8-16-drill-chuck-shank
I am wondering if my 1 1/2" diameter torque handle will be large enough diameter for
dies, torque wise. My friend has a 1 1/2" for taps and a separate handle set up for dies,
and IIRC, it is larger diameter. I imagine that dies produce more torque when threading,
need a larger diameter to hang onto.
I am thinking about going from steel handle to aluminum, too. Seems no need for the weight
and machining effort of steel for this. Not going to wear it out.
Did you use the knurling diameter scale? Looks like you got a nice knurling job on that handle.
Bill