Antaioz yeah I don't know what Direwolf20 was thinking. You don't need all the durability, also it's will cost a lot to repair.
I made my pick like so. Head: Cobalt, Bind: Paper & Rod: Thaumium for 5 Modifiers. With Mods - Silky Jewel, Flux, Redstone.
Cobalt is only mining lvl 4 while Manyullyn...