20: 1 Reduction Contrast Angle

Lightweight stainless steel made of 20: 1 reduction counter angle, can withstand years of use, the highest torque of 70 Ncm, is currently one of the strongest torque on the market. The normal ball bearings can reduce the friction and heat between each other. Built-in high-quality structure to guarantee 20: 1 reduction versus angle smooth and long-term work.