I fitted Grivel Easy Sliders to a pair of Venoms (a 57cm axe and a 50cm hammer). It was super simple to do and the end result is very functional as well as clean and professional looking.
Did you need to add some sort of stopper to the bottom of the shafts? I've seen people drill and place a bolt. I'm looking to do this and haven't heard of people using the Easy Sliders and would be very interested if one didn't have to drill.