Thread: Blade Sharpening

Originally Posted by Carry Pine

Here is a dumb question, but one that has me wondering at night:

I hear a lot about sharpening saw blades and there are recommendations on the Forum but-

Surely you can't sharpen a carbide-tipped blade once the carbide tips have worn down so that there is no more kerf on the blade? It needs new tips, doesn't it? And the cost of doing that must be round about the cost of a new blade (especially on special)?

I've kept my old blades just in case, but I'm sure they are worthless now.

Cheers,

Carry Pine

Yup once they wear down so much they cannot be sharpened without retaining the same kerf dimension and tooth profile, time for a new blade. hang the old ones up in the shed for decoration.

I suppose if you were really attached to the blade body and wanted it re-tipped, you probably could, but a new blade would most likely be much cheaper

Hang them up?!

The steel can be used for marking knives and scrapers.

Regards from Perth

Derek

You dont loose any kerf, they remove metal from the hight of the tooth to sharpen.

Thanks guys,

restful nights- but lots to think about.

Harry72You dont loose any kerf, they remove metal from the hight of the tooth to sharpen.

Harry, the carbide tip has worn on the side so the tip is only as wide as the main part of the blade.

The other guys were on the money but of course Derek gives me more to think about. Yes, it is good steel. I won't dice them any more.

Thank you for your replies.

Graham

Originally Posted by derekcohen

Hang them up?!

The steel can be used for marking knives and scrapers.

Regards from Perth

Derek

So you like your scrapers to a bit on the stout side?

I always though circular saws were made from something like 2.5mm plate


ian

Hi Ian

Think of blades for the #80 and #112 ... actually a stiff cabinet scraper is excellent as well - just give it a touch of camber.

Regards from Perth

Derek

Hi Derek

your hands must be a lot stronger than mine !!

(very tongue in cheek) and I thought you prefered the Stanley and Veritas scraper planes (with their 1 to 1.4 mm blades) over the L-N version with it's 3.5mm blade


but I agree with you the steel is tool "nice" to waste as a wall ornament



spend as much of the weekend as you can in the shed (or on the veranderah)

ian

Originally Posted by Carry Pine

Thanks guys,

restful nights- but lots to think about.

Harry72You dont loose any kerf, they remove metal from the hight of the tooth to sharpen.

Harry, the carbide tip has worn on the side so the tip is only as wide as the main part of the blade.

The other guys were on the money but of course Derek gives me more to think about. Yes, it is good steel. I won't dice them any more.

Thank you for your replies.

Graham

The teeth cut at the top not the sides, if the sides are worn you've either got a warped blade or your saw has runout

You dont loose any kerf, they remove metal from the hight of the tooth to sharpen.

They don't just take material off the tips of the tooth, the proper way to sharpen is to face the front of the tooth and then make the saw round by tipping them.

I just had 6 blades sharpened, both rip, cross cut and triple chip. They are all done the same way.

Robert

I just buy a new blade but then again I don't buy really expensive ones

Originally Posted by specialist

They don't just take material off the tips of the tooth, the proper way to sharpen is to face the front of the tooth and then make the saw round by tipping them.

I just had 6 blades sharpened, both rip, cross cut and triple chip. They are all done the same way.

Robert

They only grind the face if you have chips in the carbide... or left it too long between sharpenings rounding the top edge.

They only grind the face if you have chips in the carbide... or left it too long between sharpenings rounding the top edge.

I have got to say that after some 15 odd years of getting all manner of blades sharpened from about 4 or 5 different companies, they all do it the same way. face the front and then tip the blade no matter what the condition. That's just my experience, maybe your guy does it differently.

Robert

Yeah your probably right

Do you guys have any suggestions for someone in Sydney to sharpen saw blades that'll do a good job? Or are they all much the same as each other?