I find myself in need of some (carbide) end mills with long flutes (30mm, 1.18"), thing is these always seems to be coupled with very long shanks (OAL 75mm, 3" or more).
So since the internet seems to suggest everything from just bashing them with a hammer and hoping for the best, to specialized equipment. I was hoping that someone here might have some practical experience in the matter?
How do you cut down the shank to a appropriate length?
Use a file to make a nick where you want it to break, clamp the flutes between two pieces of wood in a bench vice and whack the part you want to break off with a hammer (gently, work you’re way up to where it breaks) . WEAR SAFETY GLASSES!