Tightens all spokes identically to proper torque setting to maximize the highest strength capacity and reduce the likelihood of rim/hub/spoke breakageTakes the guessing and fatigue out of building wheels and maintaining the desired tension of spokesComes with 5 heads in the most common sizes, including the spline drive headComes in a handy yellow composite storage box and makes a great giftEasily adjustable with a range of 15-60''-lbEU Easily adjustable with a range of 2626,9 - 10507,6 Nm