Leather 1
Bronze 1
Iron 1
Steel 5
Black 10
Mithril 20
Adamantite 30
Runite 40
Dragon 60

Other items such as staffs, amulets, machettes, robes, hats, 
masks, etc. have a requirement of 1.

PICKAXES 
 1

 4

 6

 21

 31

 41