15 pound bar with blade tip and pointy tip.  Dig with the chisel-shaped end.  Break up concrete with the pointy end.  The bar itself has enough weight that you can just drop or throw it at your target. . . .

Consider wearing your steel-toed shoes when using this tool.  If you don't have steel-toed shoes, consider getting some and wearing them.

Remember!  Call Before You Dig (EWEB) and NW Natural.