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Very happy with this purchase and I'd recommend them to anyone. 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. Just a minor thing, but would be a nice addition. Took a little convincing to spend the money on these, but I bit the bullet and I'm glad I did. They cut quick, clean, and just great. The only thing that would be nice is if they had a drill bit size guide on the back, like my cheaper set did.
Unbelievable the difference these cobalt bits made. I read the reviews on these bits and decided to give them a try. They really hold their edge and seem much more heat resistant than non-cobalt bits. 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. These bits are really worth the price. They drilled through the steel like it was wood.
To sum it up, spend the money. I never appreciated the difference between these cobalt bits and the high speed steel and titanium coated steel bits. The job seemed impossible. I am now a believer and will only use these cobalt bits from now on.
My Dad always said " Son if you are going to be STUPID you better be tough." KW I put one of the new bits in my cordless drill and. WOW these bits are the best I have used in years. All of my old bits were dull. 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 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.
These bits are super. Stop wasting your money on the cheap stuff; get the best.
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