02-01-2015, 09:24 AM
I could see interchangeable tips being done in a secure "bayonet" fashion that would make the tool pretty cool.
Assuming you don't ever actually strike, gouge, or otherwise engage force upon the heads, you could bore the ends of the rod, put an internal clip groove to retain a spring-loaded plunger and mill one or two L-shaped grooves to engage pins on the heads. I suck at making sketches and really don't have time right now to try, so perhaps others can come up with ideas which could actually be illustrated.
Assuming you don't ever actually strike, gouge, or otherwise engage force upon the heads, you could bore the ends of the rod, put an internal clip groove to retain a spring-loaded plunger and mill one or two L-shaped grooves to engage pins on the heads. I suck at making sketches and really don't have time right now to try, so perhaps others can come up with ideas which could actually be illustrated.