The Desh Pickaxe is a tool used to dig up blocks and can be considered a tier 2 version of Heavy Duty Pickaxe with an increased durability of 1024 and attack damage of 4.5.
It is a good alternative to a Diamond Pickaxe, since it can mine including obsidian blocks.
Sticky Desh Pickaxe
Sticky Desh Pickaxe (made-up name, following the vanilla Sticky Piston) is an Easter Egg included in Galacticraft 3. It has no recipe in-game and in survival mode the only way to obtain it is to cause a Desh Pickaxe to transform into the Sticky version.
The Sticky Desh Pickaxe has two special properties: it is always enchanted with a Silk Touch enchantment, and it is the only tool which can harvest a Creeper Egg.
As a clue to how to cause the transformation to happen, take a suitably enchanted regular Desh Pickaxe and think about what you might do with it to cause it to become coated in sticky slime.