During mining, you need to have pickaxe with you at all times. It's important to remember that it does not need to be equipped , and RS gold could be put in your inventory while you're training. Remember that this will create one inventory space which could be used for more ore. If your attack is sufficiently high, you should always have the top pickaxe you are able to.
There are currently 8 levels of regular pickaxes starting at the level of 1 and going up to levels 6, 11, 21, 31, 41 and level 61 for the top one. There are two types of pickaxes: Bronze iron and Bronze Pickaxes may be used from the start. In the 6th level, they may be traded for the Steel version, and at level 11 you can upgrade to a Black Pickaxe. Level 21 allows players to wield Mithril Pickaxe and 31 Adamant versions of this weapon. The best free to play pickaxe is the Rune Tier and requires level 41. Players who are members an account can utilize the Dragon pickaxe at level 61. It's the fastest mining pickaxe in the game.
There are 2 exclusive pickaxes available for members only. Infernal Pickaxe, which requires level 61 Mining will smelt ? of your ores that you have mined, giving you more experience in the Smithing skills in addition to Mining xp. It has the same special attack as Dragon Pickaxe which grants you +3 boost in your mining level for a small period of cheap OSRS GP time. Additionally, there is a Third Age pickaxe which is very similar to its Dragon counterpart. One difference, however, is in the appearance of the objects and the source from where you can obtain it.