To my surprise, PB Swiss recently came out with new rainbow color-coded ball hex keys in inch sizes. They already have color-coded metric hex wrenches, and for the longest time I assumed the company had no plans to produce similar inch-sized key wrenches.
The inch set comes with 12 sizes from 0.050″ to 5/16″. The wrenches feature ball-shaped hex tips on the long end, and straight hex tips on the short end. This is so you can do final tightening or break fasteners free with the stronger straight tip, and spin loose fasteners with the easy-access ball tip.
PB Swiss products are somewhat pricey, so this set isn’t ideal for the once-a-month weekend warrior; they’re more for folks who will use them much more often.
The 12-piece set is priced at around $90 USD. You can also purchase all of the inch wrench sizes individually
Tool Lady doesn’t have the set listed on the site yet, but you can email them for the latest pricing.