JR DS8411 Ultra Torque Servo This is the JR Radio DS8411 Digital Ultra Torque Metal Gear Servo.Features:A whopping 155 oz/in of torqueIncreased resolution of 5900 steps per 120 degrees and a less than 1 ms deadband for extreme accuracyHardened steel and brass gear train that's virtually un-strippableStandard size case that fits nearly anywhereThe highly efficient digital amplifier has only a slightly higher current drain (approximately 8% more t