ProTek RC 1KTBL Black Label Ultra High Torque Brushless Waterproof Crawler Servo (High Voltage/Metal Case) (Digital)ProTek RC 1KTBL High Torque Brushless Crawler Servo The ProTek 1KTBL was developed to satisfy the needs of torque thirsty enthusiasts. With the ability to deliver over 1000 oz in of torque and . 11 transit speeds at 8. 4V, there aren't many servo options that can compete. Competition rigs, heavy scalers and bashers can take advantage of what the 1KTBL delivers. Even large scale surface models and airplanes can benefit from the insane torque the 1KTBL