Tool Expert

You have honed your proficiency with particular tools, granting you the following benefits:

• Increase one ability score of your choice by 1, to a maximum of 20.
• You gain proficiency in one artisans tool of your choice.
• Choose one artisans tool in which you have proficiency. You gain expertise with that tool, which means your proficiency bonus is doubled for any ability check you make with it. The tool you choose must be one that isn’t already benefiting from a feature, such as Expertise, that doubles your proficiency bonus.
• When you craft an item with an artisans tool you have expertise in, you can work in 50gp increments instead of 25gp. In addition the crafted item costs half the normal price.