Shop quality, preset torque driver that limits torque applied to fasteners, preventing overtightening and damage to lightweight componentsPreset to apply 4 Newton Meter (Nm) of torque when rotating clockwiseAll metal internal construction for long lifeComfortable ergonomic composite moulded gripIncludes 3mm, 4mm, 5mm and T25 bits (stored in handle)1 1/4 driveMagnetic socket retains bitsAssembled and calibrated at the Park Tool factory in St. Paul, Minnesota