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Stamped numbers in recently sharpened table saw blade

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Forum topic by ckorkyrun89 posted 03-20-2018 05:03 PM 1317 views 0 times favorited 11 replies Add to Favorites Watch
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ckorkyrun89

65 posts in 1992 days


03-20-2018 05:03 PM

I just got one of my table saw blades sharpened for the first time and the company stamped numbers in the blade right around the arbor hole. I assume these are for them to track the blade during their process. Is this normal?

My concern is that the stamping raised some of the metal and it is not going to sit flat on the arbor anymore. Is this an unfounded concern? Should I just stone the area back to flat and move on?


11 replies so far

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MrRon

4720 posts in 3212 days


#1 posted 03-20-2018 06:43 PM

It may sound normal, but I don’t think it is a good practice. Stamping anything onto a tensioned steel saw blade could cause the blade to distort. I don’t know if this is true, but it doesn’t sound right to me. There are other ways to place identification marks on steel; electrochemical is one.

View John_H's profile

John_H

173 posts in 1675 days


#2 posted 03-20-2018 08:23 PM

I have a couple of Forrest WWII blades and they have a serial number stamped in them from the factory. I make sure I write the numbers down when I send them in to be sharpened. This one just came back from Forrest

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ckorkyrun89

65 posts in 1992 days


#3 posted 03-21-2018 01:37 AM

Thanks for the replies. I think that I will just stone the raised portions back down.

Unfortunately, after peeling some of the wax off, some of the teeth are chipped so it will be heading back to someone else to get sharpened properly.

Do you typically find that it is easier to send blades back to the factory? I was hoping that the ease of using a local sharpener would work out well, but I think I need to find a different option.

View Richard Lee's profile

Richard Lee

119 posts in 744 days


#4 posted 03-21-2018 02:09 AM

If the teeth are chipped take it back to them and say fix this or replace it.
Also stamping can alter the trueness of a blade.

View Fred Hargis's profile

Fred Hargis

4954 posts in 2462 days


#5 posted 03-21-2018 10:50 AM

I gave up on local sharpeners. Around me they are little more than hacks with a grinder (relative to woodworking tooling). You need a quality sharpener, and they do not have to be the factory. I’ve used both Bull Sharpening in Oak park IL and Dynamic Saw in Buffalo NY. You do get nicked for the shipping both ways, but the job they do is so superior that it’s worth it. I usually try to send several items (both are full service shops…router bits, forstner bits, planer knives, etc.) There are several other mail in places, these 2 I’ve used.

-- Our village hasn't lost it's idiot, he was elected to congress.

View Woodbum's profile

Woodbum

808 posts in 3034 days


#6 posted 03-21-2018 11:37 AM

I send my blades to Forrest and receive excellent service and great results with very sharp blades returned to me. I feel that the original saw manufacturer can do a better sharpening job than a third party service since they know the blade and tooth geometry, and can sharpen them to original specs. Why trust your expensive TS blades to somebody that may or may not be qualified to properly handle them. My vote is for Forrest blades and their great sharpening service.

-- "Now I'm just another old guy wearing funny clothes"

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John_H

173 posts in 1675 days


#7 posted 03-21-2018 03:47 PM

Forrest makes it pretty easy.

I have a Leitz machine center pretty close and they charge around $22 for a 10” blade where Forrest charges $26. And you have to pay for shipping there and back – they are in New Jersey.

I am pretty confident that Forrest will do a good job, especially with their own blades so you have to decide what your time is worthing taking the blades to a local shop and then going back to pick them versus just paying more for the convenience of having the post office pick them up from your house and dropping them off again

View joey502's profile

joey502

525 posts in 1487 days


#8 posted 03-21-2018 05:03 PM

What response did you get from the shop that marked your blade? There may be a good reason they did it or they gave you someone else’s blade that was already catalogued .

View AZWoody's profile

AZWoody

1325 posts in 1193 days


#9 posted 03-21-2018 05:30 PM

Even if it’s normal that they do it, I would check blade runout after you put the blade back on the machine.

View ckorkyrun89's profile

ckorkyrun89

65 posts in 1992 days


#10 posted 03-22-2018 01:50 AM

I will have to call early next week and talk to them about this. Overall, it sounds like what happened here isn’t typical, so I don’t plan on going back other than to get this blade actually sharpened (or for a refund).

View MrRon's profile

MrRon

4720 posts in 3212 days


#11 posted 03-23-2018 12:46 AM

Chipped teeth on a carbide blade need to be replaced; a big job because after they are replaced, the blade has to have a complete regrind to accommodate the new tips. This costs a lot, sometimes more than the blade cost. When I was sharpening saw blades, I would charge $6 for each tip needing replacing plus the cost to resharpen all the teeth. Sometimes when only one tooth is chipped, I will not replace it in order to avoid having to sharpen the whole blade. The customer is made aware of this before doing the work. It is up to him if he wants to spend the money. Amateur saw sharpeners may not have the equipment to re-tip blades. I do all my own blades, but I have all the necessary tools to do it.

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