JT

24/11/2003 12:04 AM

QUESTION - HOW DO YOU SHARPEN A HOLE SAW?


Besides slowly? And, no, it ain't a troll. Maybe next time.

I've got two hole saws. Turns out they're not quite the same. I
was looking for a snug fitting hole to take a skateboard wheel. One
made a hole slightly too big. Decided to try the other - just in case -
perfect.

However, the first one drilled nicely, but quite slowly, and I had
to flip the plywood, to drill it completely thru.

The second one zipped thru the same thickness of plywood almost as
fast as I could pull the handle down.

I had been using the first hole saw, and had figured the problem
was lack of power in my little bench HF drill press (which works
excellently, by the way), even tho it drills thru steel with no problem.
Turns out, I was wrong.

Both saws feel the same, as far as sharp goes. Both look the same.
The only way I can tell any difference is drilling a hole.

I can sharpen a saw blade, but never thought about sharpening a
hole saw. So, is there any special trick, equipment, or exotic ways of
doing it? Just take it slow and careful? Or, nobody knows? Of course
I checked google.

And, yeah, I know I could just buy another one, but where's the fun
in that?
I'm sure you've never done it Dave, so we don't need to have you
pop up with any inane, or even insane, input.

JOAT
Of course I don't think you're a complete idiot. Some parts are
missing.

Life just ain't life without good music. - JOAT
Web Page Update 23 Nov 2003.
Some tunes I like.
http://community-2.webtv.net/Jakofalltrades/SOMETUNESILIKE/


This topic has 26 replies

bB

[email protected] (BUB 209)

in reply to [email protected] (T.) on 24/11/2003 12:04 AM

24/11/2003 1:19 PM

> I can sharpen a saw blade, but never thought about sharpening a
>hole saw. So, is there any special trick, equipment, or exotic ways of
>doing it

I do the steel ones using a dremel tool
and one of those reinforced cutoff wheels.
You can use a small solid carbide burr
to sharpen forstner bits also. Its not a
precision job like what you'd get from
a sharpening shop, but if the tool cuts
like crazy after you're done, who cares?

JT

in reply to [email protected] (T.) on 24/11/2003 12:04 AM

24/11/2003 5:54 PM

It's all a moot poiint now. The blasted thing broke. Where the
screw is threaded in broke, and it somehow managed to get the blade bent
at the same time. Totally unsalvagable. Bah. Humbug.

JOAT
Of course I don't think you're a complete idiot. Some parts are
missing.

Life just ain't life without good music. - JOAT
Web Page Update 23 Nov 2003.
Some tunes I like.
http://community-2.webtv.net/Jakofalltrades/SOMETUNESILIKE/

ET

"Eric Tonks"

in reply to [email protected] (T.) on 24/11/2003 12:04 AM

24/11/2003 12:23 PM

I have done the same with excellent results.

"BUB 209" <[email protected]> wrote in message
news:[email protected]...
> > I can sharpen a saw blade, but never thought about sharpening a
> >hole saw. So, is there any special trick, equipment, or exotic ways of
> >doing it
>
> I do the steel ones using a dremel tool
> and one of those reinforced cutoff wheels.
> You can use a small solid carbide burr
> to sharpen forstner bits also. Its not a
> precision job like what you'd get from
> a sharpening shop, but if the tool cuts
> like crazy after you're done, who cares?
>
>

Tt

Trent©

in reply to [email protected] (T.) on 24/11/2003 12:04 AM

24/11/2003 10:41 AM

On Mon, 24 Nov 2003 00:04:39 -0500 (EST), [email protected]
(T.) wrote:

> I can sharpen a saw blade, but never thought about sharpening a
>hole saw. So, is there any special trick, equipment, or exotic ways of
>doing it? Just take it slow and careful? Or, nobody knows? Of course
>I checked google.

No special trick...except for the angle. Just make sure each tooth is
sharpened as close as possible to its original angle.

I bought a tool from QVC...a kitchen tool...to sharpen my kitchen
knives. On one end, it has a open area...to sharpen things that can't
be put into the V part like a knife.

I sometimes use it...in place of a file. Just 2 one-direction
swipes...and a tooth is back to factory specs.

> And, yeah, I know I could just buy another one, but where's the fun
>in that?

I sharpen all my blades on a regular basis. I've never farmed any of
them out. I usually have 2 of everything...one being used...and one
sharpened and ready to go.



Have a nice week...

Trent

Fighting for peace is like screwing for virginity!

bR

[email protected] (Robert Bonomi)

in reply to [email protected] (T.) on 24/11/2003 12:04 AM

25/11/2003 8:31 AM

In article <[email protected]>,
T. <[email protected]> wrote:
> It's all a moot poiint now. The blasted thing broke. Where the
>screw is threaded in broke, and it somehow managed to get the blade bent
>at the same time. Totally unsalvagable. Bah. Humbug.

this from the man who said "failure is not an option", earlier in *this*
Discussion? !! <VBG,d&r>

JT

in reply to [email protected] (Robert Bonomi) on 25/11/2003 8:31 AM

25/11/2003 6:22 PM

Tue, Nov 25, 2003, 8:31am (EST+5) [email protected]
(Robert=A0Bonomi) says:
this from the man who said "failure is not an option", earlier in *this*
Discussion? !! =A0
The complete saying, is:
Failure is not an option.
But it is definitely a possibility.

JOAT
Of course I don't think you're a complete idiot. Some parts are
missing.

Life just ain't life without good music. - JOAT
Web Page Update 23 Nov 2003.
Some tunes I like.
http://community-2.webtv.net/Jakofalltrades/SOMETUNESILIKE/

Tt

Trent©

in reply to [email protected] (T.) on 24/11/2003 12:04 AM

25/11/2003 9:14 AM

On Tue, 25 Nov 2003 08:31:34 +0000, [email protected]
(Robert Bonomi) wrote:

>In article <[email protected]>,
>T. <[email protected]> wrote:
>> It's all a moot poiint now. The blasted thing broke. Where the
>>screw is threaded in broke, and it somehow managed to get the blade bent
>>at the same time. Totally unsalvagable. Bah. Humbug.
>
>this from the man who said "failure is not an option", earlier in *this*
>Discussion? !! <VBG,d&r>

Yup. I don't see why it couldn't be welded and balanced. lol


Have a nice week...

Trent

Fighting for peace is like screwing for virginity!

GM

"George M. Kazaka"

in reply to [email protected] (T.) on 24/11/2003 12:04 AM

24/11/2003 5:33 AM

Send them to a proffesional saw sharpening place and they can sharpen,
carbide and all,
there are some of the bi-metel hole saws that cannot be sharpened .
the regular one that look like handsaw teeth are sharpened with a file and
of course have to be reset
T if you sau they felt the same but one was better than the other check the
sey to see if one has a better set

Good Luck,
George
Let us know how you make out
"Andy Dingley" <[email protected]> wrote in message
news:[email protected]...
> On Mon, 24 Nov 2003 00:04:39 -0500 (EST), [email protected]
> (T.) wrote:
>
> > I can sharpen a saw blade, but never thought about sharpening a
> >hole saw.
>
> All my hole saws are either carbide (can't sharpen that) or induction
> hardened (can't sharpen that either).
>
> I have two sets; sharp and blunt. I keep the blunt ones for building
> work, when I _know_ I'm going to ruin them in plaster, or by hitting a
> brick. They're not expensive to buy and I know I can still get some
> use out of one that's less than pristine.
>
> --
> Die Gotterspammerung - Junkmail of the Gods

WB

"Wood Butcher"

in reply to [email protected] (T.) on 24/11/2003 12:04 AM

24/11/2003 7:00 PM

Personally I'd go buy another set at horrible freight as I've tried
to sharpen them with a file and found the metal's too hard.
But since you want to have fun . . .
1. Dremel tool with the grinding disk.
2. Small diamond faced stick or even a fingernail file.
3. Propane torch to anneal the saw and just use regular files.
The above are random thoughts, none of which I've tried.
Have fun.

Art

"T." <[email protected]> wrote in message
news:[email protected]...
>
> Besides slowly? And, no, it ain't a troll. Maybe next time.
>
> I've got two hole saws. Turns out they're not quite the same. I
> was looking for a snug fitting hole to take a skateboard wheel. One
> made a hole slightly too big. Decided to try the other - just in case -
> perfect.
>
> However, the first one drilled nicely, but quite slowly, and I had
> to flip the plywood, to drill it completely thru.
>
> The second one zipped thru the same thickness of plywood almost as
> fast as I could pull the handle down.
>
> I had been using the first hole saw, and had figured the problem
> was lack of power in my little bench HF drill press (which works
> excellently, by the way), even tho it drills thru steel with no problem.
> Turns out, I was wrong.
>
> Both saws feel the same, as far as sharp goes. Both look the same.
> The only way I can tell any difference is drilling a hole.
>
> I can sharpen a saw blade, but never thought about sharpening a
> hole saw. So, is there any special trick, equipment, or exotic ways of
> doing it? Just take it slow and careful? Or, nobody knows? Of course
> I checked google.
>
> And, yeah, I know I could just buy another one, but where's the fun
> in that?
> I'm sure you've never done it Dave, so we don't need to have you
> pop up with any inane, or even insane, input.
>
> JOAT
> Of course I don't think you're a complete idiot. Some parts are
> missing.
>
> Life just ain't life without good music. - JOAT
> Web Page Update 23 Nov 2003.
> Some tunes I like.
> http://community-2.webtv.net/Jakofalltrades/SOMETUNESILIKE/
>

AD

Andy Dingley

in reply to [email protected] (T.) on 24/11/2003 12:04 AM

24/11/2003 12:15 PM

On Mon, 24 Nov 2003 00:04:39 -0500 (EST), [email protected]
(T.) wrote:

> I can sharpen a saw blade, but never thought about sharpening a
>hole saw.

All my hole saws are either carbide (can't sharpen that) or induction
hardened (can't sharpen that either).

I have two sets; sharp and blunt. I keep the blunt ones for building
work, when I _know_ I'm going to ruin them in plaster, or by hitting a
brick. They're not expensive to buy and I know I can still get some
use out of one that's less than pristine.

--
Die Gotterspammerung - Junkmail of the Gods

Tt

Trent©

in reply to [email protected] (T.) on 24/11/2003 12:04 AM

24/11/2003 10:33 AM

On Mon, 24 Nov 2003 12:15:06 +0000, Andy Dingley
<[email protected]> wrote:

>On Mon, 24 Nov 2003 00:04:39 -0500 (EST), [email protected]
>(T.) wrote:
>
>> I can sharpen a saw blade, but never thought about sharpening a
>>hole saw.
>
>All my hole saws are either carbide (can't sharpen that) or induction
>hardened (can't sharpen that either).

Aren't they just carbide tipped?


Have a nice week...

Trent

Fighting for peace is like screwing for virginity!

RS

Robert Shanks

in reply to Trent© on 24/11/2003 10:33 AM

25/11/2003 7:25 PM

Hey JOAT -

What size hole cutter do you need? I've got several and I'm just over
the hill from you.

Robert (in Raleigh)

In article <[email protected]> T.,
[email protected] writes:
>It's all a moot poiint now. The blasted thing broke. Where the
>screw is threaded in broke, and it somehow managed to get the blade bent
>at the same time. Totally unsalvagable. Bah. Humbug.

JT

in reply to Robert Shanks on 25/11/2003 7:25 PM

25/11/2003 6:25 PM

Tue, Nov 25, 2003, 7:25pm (EST+5) [email protected] (Robert=A0Shanks)
says:
Hey JOAT -
What size hole cutter do you need? I've got several and I'm just over
the hill from you.

About 2" would probably do me, up to about 3". I'm not real
choosy. LOL

Wanna swap something?

JOAT
Of course I don't think you're a complete idiot. Some parts are
missing.

Life just ain't life without good music. - JOAT
Web Page Update 23 Nov 2003.
Some tunes I like.
http://community-2.webtv.net/Jakofalltrades/SOMETUNESILIKE/

Tt

Trent©

in reply to [email protected] (T.) on 24/11/2003 12:04 AM

24/11/2003 9:14 PM

On Mon, 24 Nov 2003 17:54:35 -0500 (EST), [email protected]
(T.) wrote:

> It's all a moot poiint now. The blasted thing broke. Where the
>screw is threaded in broke, and it somehow managed to get the blade bent
>at the same time. Totally unsalvagable. Bah. Humbug.

Can't you WELD it?! lol


Have a nice week...

Trent

Fighting for peace is like screwing for virginity!

Tt

Trent©

in reply to [email protected] (T.) on 24/11/2003 12:04 AM

24/11/2003 12:48 PM

On Mon, 24 Nov 2003 12:23:28 -0500, "Eric Tonks" <[email protected]>
wrote:

>I have done the same with excellent results.
>
>"BUB 209" <[email protected]> wrote in message
>news:[email protected]...
>> > I can sharpen a saw blade, but never thought about sharpening a
>> >hole saw. So, is there any special trick, equipment, or exotic ways of
>> >doing it
>>
>> I do the steel ones using a dremel tool
>> and one of those reinforced cutoff wheels.
>> You can use a small solid carbide burr
>> to sharpen forstner bits also. Its not a
>> precision job like what you'd get from
>> a sharpening shop, but if the tool cuts
>> like crazy after you're done, who cares?

I've found that any power tool like that takes off WAY too much
material.


Have a nice week...

Trent

Fighting for peace is like screwing for virginity!

MR

Mark

in reply to [email protected] (T.) on 24/11/2003 12:04 AM

24/11/2003 8:08 PM



Trent© wrote:

>
>>
>>"BUB 209" <[email protected]> wrote in message
>>
>>>
>>>I do the steel ones using a dremel tool
>>>and one of those reinforced cutoff wheels.
>>>
>
> I've found that any power tool like that takes off WAY too much
> material.
>


It's all a matter of knowing how to hold the tool and concentration.




--

Mark

N.E. Ohio


Never argue with a fool, a bystander can't tell you apart. (S. Clemens,
A.K.A. Mark Twain)

When in doubt hit the throttle. It may not help but it sure ends the
suspense. (Gaz, r.moto)

Tt

Trent©

in reply to [email protected] (T.) on 24/11/2003 12:04 AM

25/11/2003 9:16 AM

On Tue, 25 Nov 2003 05:28:56 GMT, Mark <[email protected]>
wrote:

>
>
>Trent© wrote:
>
>>
>> Are you telling me that you can take off the same amount of material
>> with a Dremmel tool that you can with 2 swipes of a file?
>
>
>
>
>If that's what you think I wrote you need professional help.

I *KNOW* what you WROTE...I'm just not sure I understand what you
MEANT. lol

So...answer the question.



Have a nice week...

Trent

Fighting for peace is like screwing for virginity!

Tt

Trent©

in reply to [email protected] (T.) on 24/11/2003 12:04 AM

24/11/2003 9:14 PM

On Mon, 24 Nov 2003 20:08:45 GMT, Mark <[email protected]>
wrote:

>>>>I do the steel ones using a dremel tool
>>>>and one of those reinforced cutoff wheels.
>>>>
>>
>> I've found that any power tool like that takes off WAY too much
>> material.
>>
>
>
>It's all a matter of knowing how to hold the tool and concentration.

Are you telling me that you can take off the same amount of material
with a Dremmel tool that you can with 2 swipes of a file?


Have a nice week...

Trent

Fighting for peace is like screwing for virginity!

MR

Mark

in reply to [email protected] (T.) on 24/11/2003 12:04 AM

25/11/2003 5:28 AM



Trent© wrote:

>
> Are you telling me that you can take off the same amount of material
> with a Dremmel tool that you can with 2 swipes of a file?




If that's what you think I wrote you need professional help.




--

Mark

N.E. Ohio


Never argue with a fool, a bystander can't tell you apart. (S. Clemens,
A.K.A. Mark Twain)

When in doubt hit the throttle. It may not help but it sure ends the
suspense. (Gaz, r.moto)

MR

Mark

in reply to [email protected] (T.) on 24/11/2003 12:04 AM

25/11/2003 7:36 PM



Trent© wrote:

>>
>>>Are you telling me that you can take off the same amount of material
>>>with a Dremmel tool that you can with 2 swipes of a file?
>>
>>If that's what you think I wrote you need professional help.
>
>
> I *KNOW* what you WROTE...I'm just not sure I understand what you
> MEANT. lol
>
> So...answer the question.



Trent, trent, trent,

Are you trolling?


--

Mark

N.E. Ohio


Never argue with a fool, a bystander can't tell you apart. (S. Clemens,
A.K.A. Mark Twain)

When in doubt hit the throttle. It may not help but it sure ends the
suspense. (Gaz, r.moto)

DF

Dave Fleming <>

in reply to [email protected] (T.) on 24/11/2003 12:04 AM

23/11/2003 10:50 PM

<snip>
>
> I can sharpen a saw blade, but never thought about sharpening a
>hole saw. So, is there any special trick, equipment, or exotic ways of
>doing it? Just take it slow and careful? Or, nobody knows? Of course
>I checked google.
>
> And, yeah, I know I could just buy another one, but where's the fun
>in that?
> I'm sure you've never done it Dave, so we don't need to have you
>pop up with any inane, or even insane, input.
>
<snip>

The real Dave says....doubt if you can sharpen a hole saw. I'm bettin'
that it is the same grade and temper of steel as a hacksaw blade.
Can't recall anybody sharpening one of those, have you?

Of course there are TCT hole saws but I have no knowledge about them.
Might hit the web and send an email to Starrett or Milwaukee or one of
the other sellers and makers of hole saws. See what they say about
re-sharpening 'em.
Tales of a Boatbuilder Apprentice
http://pages.sbcglobal.net/djf3rd/

JT

in reply to Dave Fleming <> on 23/11/2003 10:50 PM

24/11/2003 3:51 AM

Sun, Nov 23, 2003, 10:50pm (EST-3) (Dave=A0Fleming) says:
The real Dave says <snip>

Whew. Glad you knew I was talking about the wannabe Dave, and not
the Real Dave.

...doubt if you can sharpen a hole saw. <snip>

You just wanna take the fun out of it, don't you? But, I only use
my holesaws on wood, so shouldn't matter if they're the same as a
hacksaw blade.

Of course there are TCT hole saws <snip>

Now, what the Hell are TCT holesaws?

JOAT
Of course I don't think you're a complete idiot. Some parts are
missing.

Life just ain't life without good music. - JOAT
Web Page Update 23 Nov 2003.
Some tunes I like.
http://community-2.webtv.net/Jakofalltrades/SOMETUNESILIKE/

DF

Dave Fleming <>

in reply to Dave Fleming <> on 23/11/2003 10:50 PM

24/11/2003 10:27 AM


> Whew. Glad you knew I was talking about the wannabe Dave, and not
>the Real Dave.
Ah those imposter types keep popping up all over the place. :-)
>
>...doubt if you can sharpen a hole saw. <snip>
>
> You just wanna take the fun out of it, don't you? But, I only use
>my holesaws on wood, so shouldn't matter if they're the same as a
>hacksaw blade.
>
>Of course there are TCT hole saws <snip>
>
> Now, what the Hell are TCT holesaws?
Tungsten Carbide Tipped aka Carbide Tipped.
To the best of my knowledge only for use on non-ferrous materials.
I can see the possibilty of re-sharpening one of those.

I don't consider a hole saw as being a very precise wood boring
device.
If you have a drill press a FLY CUTTER would be my choice.

Frankly for the time and effort and tools needed to even attempt a
re-sharpening of a metal cutting hole saw compared to just schlepping
out and buying a new one is not very cost effective, IMOOP, that is.

I think the 'suits' have a name for such items, Consumables, IIRC.
Tales of a Boatbuilder Apprentice
http://pages.sbcglobal.net/djf3rd/

Sd

Silvan

in reply to Dave Fleming <> on 23/11/2003 10:50 PM

24/11/2003 7:24 PM

Dave Fleming <> wrote:

> I don't consider a hole saw as being a very precise wood boring
> device.
> If you have a drill press a FLY CUTTER would be my choice.

He has a baby drill press, I think. I know with my 10" benchtop, it
specifically said that I could not use a fly cutter on the thing.

(I did it anyway, and the chuck came off more than once.)

--
Michael McIntyre ---- Silvan <[email protected]>
Linux fanatic, and certified Geek; registered Linux user #243621
http://www.geocities.com/Paris/Rue/5407/

SL

"Scott Lincoln"

in reply to [email protected] (T.) on 24/11/2003 12:04 AM

23/11/2003 11:02 PM

"T." <[email protected]> wrote in message
news:[email protected]...

> I can sharpen a saw blade, but never thought about sharpening a
> hole saw. So, is there any special trick, equipment, or exotic ways of
> doing it? Just take it slow and careful? Or, nobody knows? Of course
> I checked google.

I tried to have a 6" hole saw sharpened that was used for cutting holes in
fiberglass tubs and showers. It came back half done with a note saying the
thing was too hard and there was no charge. It might just be time to buy
another :)

Thanx much,

Scott

JT

in reply to "Scott Lincoln" on 23/11/2003 11:02 PM

24/11/2003 3:53 AM

Sun, Nov 23, 2003, 11:02pm (EST-3) [email protected]
(Scott=A0Lincoln) claims:
<snip> It might just be time to buy another
Failure is not an option. LMAO

JOAT
Of course I don't think you're a complete idiot. Some parts are
missing.

Life just ain't life without good music. - JOAT
Web Page Update 23 Nov 2003.
Some tunes I like.
http://community-2.webtv.net/Jakofalltrades/SOMETUNESILIKE/


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