1:20 8MM High Torque Metal Gearbox Worm Gear Reducer DIY Robot Toy Car Precision Gear Ratio For Enhanced Performance

High-concerned chemical：None isCustomized：Yes Direction：Right Hand Pressure Angle：20 Standard or Nonstandard：Standard Processing：Hobbing Model Number：FS120 Tooth Profile：Helical Gear Material：Carbon Steel Origin：Mainland China Shape：Worm Certification：NONE

High-concerned chemical: None isCustomized: Yes Direction: Right Hand Pressure Angle: 20 Standard or Nonstandard: Standard Processing: Hobbing Model Number: FS120 Tooth Profile: Helical Gear Origin: Mainland China Shape: Worm Certification: NONE