From left to right; X27, Super Splitter (no longer in production), Pro Splitting axe (no longer in production). X27 is 36 inches with a 4.04 lb. head. Super Splitter is 28 inches with a 4.25 lb. head. Pro Splitter is 28in with a 2.25 lb. head. I gave away my X25 but it is just an X27 with a 28 in. handle.
The new X series case has a more durable design.
Some good advice stamped right into the plastic case.
The X series has a more pronounced hook at the end of the handle. I find it to be less comfortable than the old style.
The X series, on the left, has a rubbery coating at the end of the handle. I just noticed today that mine is begging to de-laminate a bit (visible in the picture). Time will tell if this is an issue or not. The rubber should theoretically give better grip but I've never had the old version slip out of my hands.
This is a 28 inch chopping axe that I believe is also out of production.
My favorite splitter is the "Super Splitter". I think the head geometry is most effective for the tortuous grained Live Oak that I have on my property. The short bit seems to penetrate the surface of the round better, and the wide flare opens it up the fastest. I cut my rounds pretty short at 14 inches so I don't need deep penetration as much as I need separation. The X series might be better for a longer round of straight grained wood.
The 2.25 lb Pro Splitting axe is also very effective for "easier" wood. The light weight allows you to generate a ton of speed with very little effort. In a pinch it can also do a little limbing and chopping. One needs to use caution with any of these 28inch axes, it's much easier to split your foot accidentally. I set my rounds in a tire which sits on a splitting block.
