Unity Manufacturing Torque Wrench Dogbones Adaptor Set This Torque Wrench Dogbones Adaptor Set is designed to work with a 3/8″ true wrench to allow you to properly torque the cylinder and head nuts on a Harley-Davidson Big Twin. Offered in a set of three different sizes: 7/17″, 9/16″, and 5/8″. Made in Ohio. Unity Manufacturing Torque Wrench Dogbones Adaptor Set This Torque Wrench Dogbones Adaptor Set is designed to work with a 3/8″ true wrench to allow you to properly torque the cylinder and head nuts on a Harley-Davidson Big Twin. Offered in a set of three different sizes: 7/17″, 9/16″, and 5/8″. Made in Ohio. &times &times &times &times Buy now and save! Tell a friend Visit store Watch now eBay integration by