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Very happy with this purchase and I'd recommend them to anyone. Took a little convincing to spend the money on these, but I bit the bullet and I'm glad I did. Just a minor thing, but would be a nice addition. The only thing that would be nice is if they had a drill bit size guide on the back, like my cheaper set did. They cut quick, clean, and just great. I'm using them to build my Cobra Replica and I have yet to build one, even after drilling through all sorts of materials and hundreds of holes.
To sum it up, spend the money. They really hold their edge and seem much more heat resistant than non-cobalt bits. I am now a believer and will only use these cobalt bits from now on.
Well, as I struggled to drill through the steel, I burned up a couple titanium coated bits even though I was spraying WD40 as a lubricant on the holes being drilled. They drilled through the steel like it was wood. I never appreciated the difference between these cobalt bits and the high speed steel and titanium coated steel bits.
Unbelievable the difference these cobalt bits made. These bits are really worth the price. The job seemed impossible.
I read the reviews on these bits and decided to give them a try.
DRILLED A 1/4 INCH HOLE IN MY MIDDLE FINGER ON MY LEFR HAND, IF IT WERE NOT FOR THE BONE I WOULD HAVE GONE STRAIGHT THRU MY NAIL. I put one of the new bits in my cordless drill and. My Dad always said " Son if you are going to be STUPID you better be tough." KW WOW these bits are the best I have used in years. All of my old bits were dull.
I wasn't sure if this was a good gift for Dad for Father's Day but mine loved them, turned out to be a great gift.
Stop wasting your money on the cheap stuff; get the best. These bits are super.
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