The majority of bicycle maintenance is delicate, precision work. But occasionally, getting the job done requires maximum leverage and control. The 8 and 10mm L-Handle Allen Wrench Tools are designed to create optimal torque for pedals and cranks. With an extra deep contact arm, long lever arm and ergonomic handle, having great control during high-torque moments is reassuring. These Allen wrenches also have a convenient ball end for quick turns of a bolt.