You gain the following Benefits
Ability Score Increase. Increase your Strength score by 1, to a maximum of 20.
Professional Smith. Your advanced knowledge of your craft allows you to barter and talk shop with others in your profession, you gain Advantage on Influence checks you make when speaking with weaponsmiths. Additionally, you can identify the make, origin, and traits of any melee weapon if you spend 1 minute examining it.
Sharpen Blade. Whenever you take a Long Rest, you are able to improve one non-magical melee weapon for you or an ally. You must spend 1 hour to do so, and have access to your tools and at least 10* gp worth of metal or other materials.
The improvement you grant is equal to one half your Proficiency Bonus (rounded down). For example, at level 5, with a Proficiency Bonus of +3, you may make a +1 weapon.The improvement lasts until you use this feature again.