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I've always used just a normal drill bit on spot welds, is anyone using purpose built spot weld cutters/drills?....If so, what brand/make??

Thanks!

Wurth have them ,a few different types about just google them

p&n my oldman would of brought them hes been dead for coming up 5 years I've drilled out a few spot welds in that time still going well

Thanks gents!... Think I might give these a go, available in 6 & 8 mm from Burson auto parts.