Hitec HS645 MG High Torque Servo

Hitec HS-645MG Ultra Torque servo, metal gears.

Spec: - Operating Speed: 0.24 sec/60 degree at 4.8V

- Output Torque: 107 oz/in at 4.8V

- Weight: 1.9 oz

- Size: 41 x 20 x 38mm

Features: - 3 metal gears 

- Dual ball bearing

- 4 adjustable splined horns

Detail Spec & Features check at Hitec official web site.