For vehicle use and for bug out bag, I use one of these;
http://www.amazon.co.uk/Roughneck-68004-Shovel-27-inch-Handle/dp/B003CT4DFE/ref=pd_sim_diy_19I filled the gaps between the shaft and the blade with 2 part Epoxy then painted it with some Krylon paint to camo it up. It weighs the same as the standard Fiskars NATO folding shovel.
The steel blade is very tough and hard.