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I couldn't buy anything better than this. Thank you Grizzly Industrial Inc. I ordered the extra long drill bits. Beside the price is amazing low. & Amazon. I love the way it was made in such precision. Even more, the case the bits in it is prefect with the index lay out.
when you need a litte extra, its great.bits are good quality but not excellent quality.well worth the investment
Whenever possible I try to drill a pilot hole using a standard size bit, and then use the 6" bit for the remaining depth. Considering you get 13 bits for about the price of one or (maybe) two high quality ones, I think these are a pretty good deal.Regarding flexing, I don't think it's possible to make a thin, long bit that won't flex a little, and many of the bits in this set are thin. This seems to minimize the flexing problem. I bought this bit set a few years ago for those rare occasions when I need a bit that's a little longer than normal (pocket holes, etc). I have used them a few dozen times, only in wood (hard and soft), and mostly in a hand held electric drill - I have been pleased with the results.These are not the highest quality drill bits you can buy, but they are good enough for average work.
They flex like crazy. I need some long drill bits for a job I was doing, noticed these were the only ones available here at Amazon at the moment, and they were cheap.
If you need long drill bits only once in a while, and have a drill bit sharpener handy, they are not too bad. So I got what I paid for.
I am impressed with some of the products being produced by Taiwan. I bought these on a whim.
For that reason I give it 3 stars. These are in the junk category.
More importantly, I used one to drill some holes in oak, which is wood, not metal, and they dulled after only a few drillings.
So I advise not to buy these drills. upon stress the bit simply bent in my hand. Significant deflection of straightness showed up. poor materials, poorly made. all were deflected, none really straight. I purchased these bits Aug 2004.
Took the bit out and laid it flat on my granite surface plate to check its straightness. Decent bits are relatively ridged, stiff. Chinese made I believe. And. You will be disappointed. Put a bit in my delta drill press and noticed that the business end had a significant wobble.
checked several other of the drill bits.
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