I am shocked to see the 1st picture that shows using a adjustable hard stop on a collet type holder! I've spent the last 40 years telling people to remove the hard stops and throw them in the trash. Collet type holders draw down approx. .003/ .005 (or more) depending on the fit. Using the stops creates a bind, damaging the collet and giving one a false impression that it's tight... it's not. Usually comes loose and scraps the part and possibly crashing the machine. I'm very disappointed.