Unique design for a multipurpose tool. Top mount for regular use as a breaker, side mount for post driving functions.
Dual mounting allows for greater control and flexibility. Swap the point or chisel out for a post driver and quickly drive posts in.
Swap to the low side mount when only driving posts to allow for ease of positioning and superior control. Making it easier to line posts up before driving them in.
Low side mount allows for superior access in areas with minimal head space.
In addition the low side mount means taller posts will be easier to handle.