Mauls are designed to strike with, against a softer wedge as noted earlier, not by another object. Hitting a maul with a maul (or a hammer with a hammer), results in 'hard' hitting 'hard'. Might depend on the design of the individual tool/brand/model, but generally not recommended.
I enjoy the 'Mythbusters' guys - they have a lot of fun on their show. But their science isn't always right on.
Philbert
Well, the mythbusters tried _hard_, not onece but twice and failed both times using all different ways to get a chip.
Yes, the manufacturer says not to do it. Manufacturers also say not to do all kinds of rediculous things.
I, and all my neigbors, back when I was a kid and currently for 30 years have used them that way and never got a chip except from a mushroom (kid time).
Show me someone who has stuck a maul and _not_ hammered on it.
Harry K