Does anyone have experience with sharpening brad point drill bits?

There's a good article on sharpening all kinds of drill bits
in AWW Feb 2000 pg62.

Rick's Index to the rescue!

Art

wrote in message
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Does anyone have experience with sharpening brad point drill bits?

On 20 Dec 2005 16:03:48 -0800, wrote:

Does anyone have experience with sharpening brad point drill bits?

Yep, stick them in the Drill Doctor and convert them into commonplace
twist drills for drilling metal.

To sharpen a brad point you can either fool around with diamond
slipstones for ages, you can buy a _very_ expensive tool and cutter
grinder with a lot of different tiny stones, or you can go and buy some
new ones.

My old hand augers I lovingly sharpen by hand. My powered brad points
that I chuck around in a power drill I just use until I've broken or
lost them, then buy a new set. They're only drilling wood so I blunt
them very slowly, sets are cheaper then a handful of individuals, and I
can lose or snap them faster than I ever need to worry about really
sharpening them.

wrote:
Does anyone have experience with sharpening brad point drill bits?

I sharpen mine on standard grinder. I also have never bought a Wood bit,
I make my own from HSS twist bits. To make your own takes quite a bit of
practice but It's quite simple to touch them up.
With the grinder off, set the bit against the wheel in the correct
location and angle. This gives you an idea how to position it. Start the
grinder and touch up the bit.
Use a large bit to start (practice) with and once you get the hang of it
do the lot.
Have fun
regards
John

I use a diamond hone. The ones I have are mounted on a plastic backing. I
file the flat, (on a chisel it would be the back) and then touch up the
bevel and they work really well.
max

Does anyone have experience with sharpening brad point drill bits?

Australopithecus scobis wrote:
On Wed, 21 Dec 2005 03:16:31 +0000, John B wrote:


I sharpen mine on standard grinder.


I think you posted these instructions a while ago. I wondered then, and
wonder now, are you touching up bradpoints with spurs? (I don't think so.)
Or are you grinding a twist drill to have a brad point and flat cutting
edge?

All of the bits have spurs. Your wheel has to have relatively sharp
corners. If you place a manufactured bit up against the corner of a
grinding wheel you will see how it's done.
It's hard to explain. I was shown how to do it while still an
apprentice. (When I had to walk 10 miles to and from school, up hill
both ways and sharing one shoe with my sister)
I'll take some photos if I remember, when the temperature drops below 40
and the shed stops being an oven.
regards
John

Australopithecus scobis wrote:
On Wed, 21 Dec 2005 03:16:31 +0000, John B wrote:


I sharpen mine on standard grinder.


I think you posted these instructions a while ago. I wondered then, and
wonder now, are you touching up bradpoints with spurs? (I don't think so.)
Or are you grinding a twist drill to have a brad point and flat cutting
edge?

I have posted some pics on abpw if you would like to take a look.
regards
John

Also, . . . Moto tool.
Bugs

In article ,
Australopithecus scobis wrote:
On Wed, 21 Dec 2005 03:16:31 +0000, John B wrote:

I sharpen mine on standard grinder.

I think you posted these instructions a while ago. I wondered then, and
wonder now, are you touching up bradpoints with spurs? (I don't think so.)
Or are you grinding a twist drill to have a brad point and flat cutting
edge?

--
"Keep your ass behind you"
wreck20051219 at spambob.net


If you can find Patrick Spielman's book on sharpening he shows how to
resharpen a regular twist drill into something that is close to a brad
point. It involves using the "corner" of the grinding wheel, i.e. the
side and circumference at the same time. I may have mispelled
Spielman, he is best known for scroll saw work.


--

Larry Wasserman Baltimore, Maryland

On Wed, 21 Dec 2005 05:57:49 GMT, with neither quill nor qualm, max
quickly quoth:

I use a diamond hone. The ones I have are mounted on a plastic backing. I
file the flat, (on a chisel it would be the back) and then touch up the
bevel and they work really well.
max

Please don't top post, Max.


Does anyone have experience with sharpening brad point drill bits?

Grizzly has a $6 diamond hone cone which works well if you don't have
one of Lee Valley's auger bit files. The diamond works on wee bits.

http://www.leevalley.com/wood/page.a...=1,43072,43089


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