https://www.stortz.com/product/hoop-driver/
Hoop Driver for Barrel, Hoop Driver Cooper
Drive, tighten, loosen, and remove barrel hoops with this durable hoop driver—featuring a heat-treated head, grooved face, and reinforced hardwood handle.
hoop driverbarrelcooper
https://www.stortz.com/product-category/cooperage-tools/
Cooperage Tools - Bung Puller, Hoop Driver, Bung Starter
Stortz offers the finest in cooperage tools that you can't find elsewhere. Check back often for new tools and specials
cooperage toolsbung pullerhoop driverstarter