This kit was designed to accommodate hard to reach nuts and bolts on EMD Roots Blowers. The kit consists of a "walking dog" type wrench with a rocker input, a drive handle and a 3/4" male to 3/4" female socket. The kit comes with a heavy duty storage box. A T16491 Torque Handle can be used on the input spud to torque the bolts. Set torque with a shop torque analyzer. Comparable to: EMD 8177166