Tinkering
Tinkering is used to create various tools from metal (ingots). Use tinker's tools to open the Tinkering Trade Gump. Tinkering, Blacksmithing, Tailoring, and Carpentry can be used in conjunction to make many items.
Gideon's Advice: Tinkering is somewhat expensive to raise. It is also quite useful if you're starting out because you can craft shovels from the ingots you're making to keep your weight low while mining. From Wodan (optimal):
Baseline Method w/ Documented Ingot Usage
Final skill | Ingots used | Item crafted
0-33,2 - 160 . TinkTools
32.2- 42,7. 500 ingots. Hammer 42.7- 66,7. 2000 ingots. Lockpicks 66.7- 93,4. 5000 ingots. Lockpicks 93.4 -94,3 . 500. Lockpicks 94.3- 97,1 . 3000 .Spyglass, Scales 97.1-120. 5500+ Scales
Information Grandmaster Title Tinker Starting Items : None
Skill Gain Info
Skill Gain Chance 90% Str Stat Gain Chance 5% Dex Stat Gain Chance 2% Int Stat Gain Chance 3%