The Tube Fly 2002 is machined with a combination of stainless steel & brass and is fitted with precision ball bearings for smooth rotation. A knurled friction screw is conveniently located on the side of the vise to control rotational drag. Included with every vise are three sizes in collets .042”, installed in the vise, .062” & .125”, four mandrels .031”, .041”, .062” &.125”. & a sample of HMH tubes (while supplies last)Do you need help? Do you have any questions?Ask a question and we'll respond promptly, publishing the most interesting questions and answers for others.