I have one. Bought it as a stopgap due to our high dollar one going down at
work. Guys love it. Not rugged enough for sustained commercial use (machine
shop) but should last forever in home shops. If you can't get a good point
with it, take up knitting.
I bought the Drill Doctor a couple of years ago. I am very pleased with it.
Seems to sharpen the drill bits better than new...but I may have forgotten
what "new" was like. Let's just say this.....when drilling through some
aluminum or steel with a bit sharpened by the Drill Doctor, I get two nice
long spirals of metal as the drill does it's thing...you only get continuous
spirals if the bits are sharp. 'nuff said.
Just my 2 cents.....
We recently bought one at work. It works but takes a little practice on the
smaller bits. I've never been able to justify spending near $100 for a
sharpening tool when I've probably not spent that much on bits in my entire
life. It does not do brad points either.
I have around 3-400 bits of various sizes and shapes, many of which I
inherited. Most of them were grossly dull so I bought the Drill Doctor
(don't remember the model but it's the larger one capable of sharpening up
to 3/4" I believe). It's worked great for me so far. It has definitely
saved me money if I had gone out and bought the 400 bits to replace (not
that I'd ever need all of them however). I see they've got a newer model
out that is supposedly easier to use. I didn't find the older version to
be hard to master. The one thing I will say about cost and such is this.
Nothing's worse than needing a bit on a Sunday night and the only one you've
got is dull. For me, the ability to sharpen whenever I need to vs. having
to stop work and drive to the local store is worth it. Not to mention,
many of the bits I have are much better quality than I can buy new so it's
nice to be able to keep em.
I had an earlier dirll doctor several years ago, and had no success
with it. I now have one, almost the same model, the 500 or 750, but I
have had very good success with it, I believe that they have improved
them quite a bit, and I don't have the latest model with the metal
guides. I have 3 half inch 64ths sets that I sharpened. It is really
nice to have sharp drills. Also, one set I did with split points, and
the 1/4" set, for easy hand starting with hand electric drills, I find
the split points nice for hand metal drilling.
Someone mentioned concrete bits, I tried and ruined the bits, I think
sharpening them by hand works much better, but that is my take.
As for Harbor Freight drills, I thought I would sharpen a set of them
and it would solve their poor performance problem. It did not, I
friend told me HF drills are junk, I tend to agree, there is no
comparison between them and my "rea": drill bits. I beleive that the
flutes are badly done, but I am no expert.
My take and successes, I like the drill doctor; it is worth the time
to learn how to use it and keep the drills sharp. Of course, the real
small drills just need to be replaced, I think much less than 1/8
inch, but I don't remember it is in the drill doctor manual.
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