The Savox SH-0257MG metal-gear, high-torque, digital, micro servo has more output torque than larger servos without sacrificing speed.

Features:
 
Metal gear train ensures durability and longevity.
Aluminum middle case allows for cooler operating temperatures.
Ideal for small planes, and 450 size helicopters.
 
Specifications:
Torque @ 4.8v - 1.8kg/25.0oz-in
Torque @ 6v - 2.2kg/30.6oz-in
Speed @ 4.8v - 0.13 sec/60 deg
Speed @ 6v - 0.09 sec/60 deg
Dimensions L x W x H (mm):22.8 x 12.0 x 25.4
Weight: 14.0g