Palla and Cob break Myth and Ori, and myth and Ori break Tita and Adaman. But Tita and Adaman have nothing special, and can easily be replaced with the Axe pickaxe) :
There are more end-game items but they're unobtainable! O: : r/Terraria
Terraria ALL Pickaxes & Drills Guide! (Pickaxe vs Drill, Axe/Drax, Chlorophyte, Levels/Speed/List) - YouTube
Pickaxe Terraria Guide - The Digger's Handbook - Indie Game Culture
Terraria 1.4 - Pickaxes and Drills Comparison - YouTube
Posting a non-boulder suggestion! Aside from endgame pickaxes, don't you think Adaman, Titanium and Chlorophyte pickaxes are kinda useless? i was wondering, why not make them more special, making them faster and
5 Best Axes in Terraria : r/Terraria
I made a really bad bar graph showing the speed of every pickaxe in Terraria in blocks per second. : r/Terraria
Pickaxe Terraria Guide - The Digger's Handbook - Indie Game Culture
Terraria 1.2.4 Mythbusting || Which Is Faster? Pickaxe Or Drill? [Episode 1] - YouTube
Terraria Mining Guide: Tips & Strategies for Finding Ore