Where can you find a pickaxe store in RuneScape?

You can buy a steel pick axe in the Grand Exchange (G.E.) in Varrock, or buy it at the pickaxe shop in the Dwarven Mine in Falador, but this is far off from the main pathways of most players and can be hard to reach in some cases. The prices at the Grand Exchange are also the best out of all.

With a high enough smithing level, you can also smith your own steel pickaxe. (only if you are a member)