Lock making.
Ability Score(s): Power + Precision
Usage: Making locks with metals such as iron or steel. The difficulty of creating locks means one can be made per day, and the quality is determined by you before you attempt your check. Your rolled result is the DC of the lock if you beat the DC. Locks have a maximum DC equal to double their standard DC (thus a Poor Quality Lock has a maximum DC of 40, whereas an Excellent Quality Lock has a maximum of 120).
Locks
Poor Quality: DC 20
Standard Quality: DC 30
Good Quality: DC 40
Excellent Quality: DC 60
Supreme Quality: DC 80
It is used as an occupational skill and thus is either used to craft the desired good or attempt to make your wage with it. For each day you spend in a month working your profession, you make a DC 26 (+2 per additional day) check and for each success you have you increase your wage by 10%. Failures reduce your additional wages by 10% (to a minimum of 0% new wages or no increase to your wage). Typically a moderately successful character makes an additional 25% to 60% of their wage in additional money.
Break Lock
Brute forcing a lock open, this is a service locksmiths perform when an individual loses the key to their home. Instead they make attacks with their tools, attacking the Integrity of the lock. Typically Poor Quality locks have 4 Integrity, and each quality step above Poor increases the Integrity by 4 (to a maximum of Integrity 20 on Supreme Quality). Your tools deal 2d4 points of damage to locks (and only locks) when used in this way.