Re: QUESTION - HOW DO YOU SHARPEN A HOLE SAW?

Question

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 ofthe other sellers and makers of hole saws. See what they say aboutre-sharpening 'em.Tales of a Boatbuilder Apprentice

Scott Lincoln · Accepted Answer

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

Andy Dingley · Answer

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

George M. Kazaka · Answer

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 andof course have to be resetT if you sau they felt the same but one was better than the other check thesey to see if one has a better setGood Luck,GeorgeLet us know how you make out

BUB 209 · Answer

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

TrentÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂ© · Answer

Aren't they just carbide tipped?Have a nice week...TrentFighting for peace is like screwing for virginity!

TrentÃÂÃÂÃÂÃÂ© · Answer

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.

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!

Eric Tonks · Answer

I have done the same with excellent results.

TrentÃÂÃÂ© · Answer

I've found that any power tool like that takes off WAY too muchmaterial.Have a nice week...TrentFighting for peace is like screwing for virginity!

Dave Fleming · Answer

Ah those imposter types keep popping up all over the place. :-)

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

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Wood Butcher · Answer

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 . . .

Dremel tool with the grinding disk.
Small diamond faced stick or even a fingernail file.
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

Mark · Answer

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

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