Bondhus invented the Balldriver — the ball-end hex key that lets you engage a fastener at an angle up to 25 degrees off-axis — back in 1964 in Monticello, Minnesota, and the company has been producing hex tools in that same Midwestern facility ever since. Every wrench is cold-formed from proprietary Protanium high-torque steel, then heat-treated for a 20-percent torque advantage over standard alloy steel.
The 20599 is a stubby Balldriver double pack — short-shaft hex keys sized for tight-quarters work where a full-length L-wrench won’t clear the surrounding structure. The ball ends still give the 25-degree off-axis engagement, and the stubby shaft keeps your knuckles out of the way inside a panel or engine bay.
Bondhus has been family-owned and American-made in Monticello, Minnesota since 1964, where they still machine and heat-treat every Balldriver and hex key on site. The company backs the full line with a lifetime guarantee against manufacturing defects.
