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Bits for hand drilling hardened steel

PostPosted: Fri Sep 27, 2019 12:23 pm
by Indenair
Greetings.

I'm looking for a set of drill bits https://mechanicfaq.com/drill-bits-for-hardened-steel/ for drilling out tough bolts, such as hardened exhaust studs. (Even with my favorite dewalt HSS drill bits I often have a really bad time getting anywhere.)

I've read a few sparse comments about solid carbide bits being great but I never used them, and I can't find sets of them anyway. Are they worth the price (like $25-40 a bit)?

Re: Bits for hand drilling hardened steel

PostPosted: Sun Sep 29, 2019 8:03 pm
by safecracker33
for safe hardplate we normally use carbide tipped bits, search for strongarm, alpen, Irwin pro masonary.