Kingmax K8S high torque servo
Kingmax have introduced their new K8S servo, complete with monster torque and stainless steel gears. Created using a brand new patented gear chain structure that gives it as high as 85kg/cm (continuous torque: 43.6kg/cm) of torque at 8.4V with super smooth delivery. To handle such torque the servo has an all metal casing and even the servo horn is of a super beefy metal construction.
Source: Kingmax [kingmaxhobby.com]