Requires Blacksmithing to make.
Note that this is probably a useless object, in practice. Forming the shovel appears to require a carpentry shop with a blade. If you can make a carpentry blade, you can also make a shovel of higher quality.
The Shovel Blade is 3 iron opposed to the 10 iron of a Anvil shovel so you can mass produce these for the big digs instead of slate shovels.