What type of impact sockets does a NASCAR pit crew use during a pit stop?

Question

Do they use a size larger or do they just find the bolt everytime? Is there a specail tech that they use? Do they get them really tight or are they just on?

Answer 1

http://www.circletrack.com/tipstricks/ctrp_0601_nascar_pit_stop/index.html

Answer 2

They use a 1 inch spring loaded socket which kicks the lug nuts out when then are moving from lug nut to lug nut. I use this type of socket on my dirt car. You can but then for about 35.00 at Daymotorsports and Aero.com or many other racing parts magazines sell them also