Wheel lug nuts
19mm also 3/4' also fits, torque is 80 ft lbs. I also use a Makita 18 volt cordless impact tool to help speed up the process when making the switch from summer wheels to winter wheels and vice versa in the spring time. PS: I also prefer the 6pt socket over the 12pt socket as the 12 pt can at times round off the corners of the lug nut.