For portability, it’s nice to have a folding set of hex wrenches. You can’t lose an individual wrench, and it’s great for tossing into a tool bag. Our favorites are the Bondhus 12522 ...

1. Bondhus 10-piece SAE and 8-piece Metric Ball/Hex set with stand (sold separately) 13190 and 13189 $31.03 for SAE and $27.48 for a total of $58.51 (at www.amazon.com) www.bondhus.com ...

In 1964, another inventor named John Bondhus made an important innovation to the design of the Allen wrench when he created the Balldriver. Also called a ball driver Allen wrench, it features a ...