This mod for 7 Days to Die provides you with an entrenching tool that is made up of a medley of three differing tools: a pickaxe, a fireaxe, and a shovel. Though each of the three would work so much more effectively and powerfully on their own, this option is preferable over the wrong device.

This comes with an additional mod slot than normal/ordinary tools at levels 4 to 6.

The fireaxe has a similar, even if comparably feeble, butchering function found in most fireaxes.

To find the schematic and the actual tools for crafting, you need to check the loot lists.