Excel Adjustable Torque Spoke Wrench. Adjustable torque allows you to change torque setting for diffrent bikes. Kit Includes: 6.1, 6.3, 6.5, 6.7, and Spline drive heads. Lightweight chrome, aluminum body, calibrated to + or - 2 percent accuracy. All heads are made from S45C hi-carbon steel, heat treated to an HRC 40-45 hardness.Comes in a handy composite RK Excel logo box. Wrench has adjustability ranging from 5-60Lbs.