This rotary broach I designed is 1" across the (poorly) knurled section, and the body is only 34mm long. It has the minor downside of not working very well, so I get to re-make the body and nut. The spindle inside is as close to perfect as I can do, so I can keep that for the next iteration. But the next iteration will be larger in diameter which will make it easier to make. And I think no more knurling in the new design.
