Park Tool ATD-1.2 Adjustable Torque Driver

Park Tool's ATD-1.2 is a shop-quality torque driver that keeps small bolts and carbon components from being over-tightened. The torque setting is hand-adjustable across five steps between 4 and 6 Nm, and the tool gives a firm click once the chosen limit is reached so you know to stop turning.

It comes with a set of 1/4" hex drive bits in the sizes most commonly needed on a bike (3, 4, 5mm and T25), which store magnetically inside the composite handle when not in use. All-metal internal construction keeps the calibration accurate over years of regular use, and each unit is assembled and calibrated at the Park Tool factory.