3/4" impact sockets are commonly used for car and truck maintenance. The torque value is below 1" impact socket. Common impact sockets are 6-point and deep impact sockets. The Metric sizes range from 19mm to 65mm, and SAE sizes range from 3/4" to 2-9/16".In addition, there are square impact sockets for trucks and alloy wheel impact sockets for tires, etc.