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i've never used this type of bit before but was pleased with how they performed. i dont think they can be beat for the price. i'm happy to have these in my garage.
Since I've gotten these I've used them to punch holes through sheet metal, angle aluminum, plexiglas sheet, and drill out a few old locks. These did much better than normal twist drills. Use some kind of cutting oil (or WD40) when drilling though thick/hard metals to help the bit cut and lengthen its life.
But being a hobbyist, I give them kudos. Who can complain about that.
Nice bits. These bits--they look like the Duty Now For The Future hats the fellas in Devo wore back in the 80's--but I use them to drill out holes in Altoids tins when I build radios and other phernalia in them.
Make them neatly. Nice times.
Make holes. I'm not a contractor, and if I was, I would soundly pan this product for being less-than-professional.
Good product for a good price.
I am impressed with the quality of these drill bits. Unlike other bits I have used, these have a double flute design and a heavy duty shank for stability. This makes drilling holes with this design bit more precise with smoother cutting.
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