Damn, our hardcutting makino uses three different styles of toolholders, heatshrink, squeeze and insert, and collets.
The collets have rpm limitations. I use em for big endmills, 3/4 etc... sometimes 1/2".
so I'm trying to decide which I like better, heat shrink, or squeeze and fit? The heat shrink has a skinnier shank. The squeeze and fit is super fast to insert. The heat shrink doesn't ever push the cutter back. The squeeze and fit seems a bit more rigid side to side.
They both rock, and they both suck. Both expensive and European. What is the Japanese using?