Park Tool Adjustable Torque Driver 4-6Nm (ATD-1.2) size-37 speed and control at the

speed and control at the highest level

presta-only head for easy use

The result

This sandwiches between the locking ring and the rim

Park Tool Adjustable Torque Driver 4-6Nm (ATD-1.2) size-37 speed and control at theAbout Park Tool Adjustable Torque Driver 4 6Nm (ATD 1. 2)Shop quality, adjustable torque driver that limits torque applied to fasteners, preventing over tightening and damage to lightweight components. The ATD 1. 2 features all metal internal construction with a comfortable, ergonomic composite molded grip. Each tool is assembled and calibrated at Park Tool's factory in Minnesota. FeaturesHand adjustable to 4, 4. 5, 5, 5. 5, or 6 Nm inch hex drive