Bolt extractor socket type question

[ber77]

Good day, Do i need to buy a Metric or SAE set? I will be using it on rounded off Metric bolts, and sometimes SAE.

Thanks,

 

[timmyisme22]

It's less one or the other and more a general size in order to have it dig into the bolt and grip it. Just get a nice set that ranges from large to small and you'll be fine. It's not like you'll be using the bolt again for that job

 

[G1GRANDEUR]

either will work long as size is close enough.

 

[blown94conv]

Some of the ones I have have both metric and standard markings on them, so it probably doesn't matter. Get close, and have at it!