Home Depot has some bits from Ridgid called Cryo Cobalt bits. They are silver in color. After losing an edge quickly drilling out a couple of the 50+ spot welds on my T&C's strut tower fix with the regular cobalt bits - this bit buzzed through them incredibly. The only catch is they are a lot more brittle - so keep your drill line straight.

No LH as far as I know - never extracted that way.


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