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Old 12-30-2014, 09:01 AM   #22
Senior Member
Join Date: Oct 2006
Location: pennsylvania
Posts: 199
Default Re: Left twist drill bits?

I bought some left hand drill bits at harbor freight,they were not expensive,I have been using them at work and they hold up well,I think a 13 pc set was like 19 bucks.Drill slow and use a small amount of oil to cool,once the bit catches a good piece of carbon,the broken bolt most times spins right out of the hole.Also you can heat it slightly and melt a candle over the broken stud,the fat from the candle gets into the threads and helps to loosen it
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