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Lug nut size question

26K views 6 replies 4 participants last post by  JohnGD  
#1 · (Edited)
A ratcheting 13/16 SAE socket will fit the lug nuts on my car. My question is what metric socket would be equivalent or closest to the 13/16 SAE socket? The biggest metric socket I have is a 19mm impact socket and it is a tad smaller. Don't wanna use my ratcheting 13/16 SAE socket to take off lug nuts. Would a 20mm or 21mm fit perfect? Thanks,
 
#7 ·