The HS-645MG is one of our favorite servos of all time. We use this servo for all types of applications. The reliability and performance that you get for under $46 is fantastic. Metal gears, dual ball bearings, separated motor and circuit board make the HS-645MG a top choice for rudder control and other heavy swing applications.
Dimensions:1.59 x .77 x 1.48"
133 oz/in.