Feature: 1. [PREMIUM QUALITY MATERIAL] This 20kg digital RC servo's waterproof rubber sealing screw, made of first class material, has stable performance and ensures a long service life of the product. 2. [High Performance] Digital servo is equipped with high accuracy potentiometers and high resolution digital chips, with quick response speed, strong anti interference ability, low noise, and fast heat dissipation. 3. [Unique Treatment] The 20kg servo features hard anodized metal gears for greater accuracy and longer life. The CNC aluminum middle shell enhances heat dissipation to ensure the normal operation of the servo motor. 4. [Rotatable Design] RC 20kg servo can be rotated 270 degrees, with good linearity and high control accuracy. It can rotate 360 degrees when the power is off, which is very suitable for robot joint activities. 5. [Scope of Application] The 20kg waterproof digital steering gear can be widely used in robots, robotic arms, climbing cars, remote control boats, remote control planes, etc. Specification: Item Type: 20kg Servo Shell Material: Aluminum Alloy Color: Blue Servo Size: Approx. 40 x 20 x 40.5mm/1.57 x 0.8 x 1.59 (Without Cable) Operating Voltage: 6-8.4V Running Angle: 270°±3° (500-2500usec) Pulse Width Range: 500-2500usec Neutral Position: 1500usec Rotation Direction: Counterclockwise (When 1000-2000usec) Dead Zone Width: 2usec Operating Current: 140mA- 200mA Torsion: 6V/17.2kg.cm, 8.4V/20.3kg.cm Running Speed: 6V/0.15s/ 60 Degrees, 8.4V/0.13s/ 60 Degrees Applicable: For 1/10 1/12 Scale RC Car, Robot, Ship, Mmanipulator Etc.. Package List: 2 x Servo2 x Metal Servo Arm8 x Plastic Servo Arm8 x Screw Barrel8 x Rubber Pad14 x Screw Note: Please allow some errors due to manual measurement.