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It is the safe and legal minimum thickness allowed for a brake rotor.
2/32"
If you mean tire tread depth, the minimum is 1.6mm.
2/32 of an inch
If they have enough thickness left to still be above legal minimum thickness after the resurfacing, yes.
Tire spec in PA is 2/32 of an inch of minimum tread
4/32 nds of an inch
There is a legal minimum thickness for all rotors.
IC 9-19-18 - Indiana does not have a legal tire depth law... Most states list 2/32 as the limit.
In Virginia you must have 2/32 tread depth on all 4 tires to pass inspection.
I would replce at about 4mm to keep the pad from comming off the backing plate and causing damage.
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