Diamond axe (+++)
A Diamond Axe reinforced with diamond rods.
Iron axe (+)
A Iron axe reinforced with stone rods. Early on, you might want to make this because it is easy to create and allows you to collect 10% more items with an iron axe.
Diamond Pickaxe (+++)
A Diamond Pickaxe created with diamond rods.
Diamond Shovel (+++)
A Diamond Shovel Reinforced with diamond rods