Reviewed by 1 customer
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Comments about Replacement 1/16" Cobalt Drill Bit for Safety Wire Drill Jig:
This is a high quality bit and is the only one I've found that will drill Grade 8 bolt heads. The highest priced bits at the hardware store only make a Grade 8 bolt shine at the contact point. If you have a big project it's a good idea to stock up since any 1/16 bit is easily broken (especially as your arm gets tired or after that second root beer).