Table saw blade arbor size

**groeneaj** · 29th October 2012, 05:01 PM

Hi all,
I purchased a table saw blade and dado set a little while ago with the intention of buying the Carbatec TSCE-10L table saw which has an 5/8" arbor. However, Carbatec do not sell this saw anymore and iv'e had to look at other table saws.
The one i'm looking at now has a 1" arbor, which leads me to my question - If I went to an engineering shop and they made the arbor hole on my blades 1", do you think I will lose any accuracy or quality of the saw blades?

I'd also be interested to know of any places that do this service in Sydney (already tried Henry Bros, and they suggested going to an engineering shop).

2-Pc. Dadonator + Super-General Blade Package-Carbide Router Bits | Router Bit Sets | Shaper Cutters | Saw Blades | Planer Knives | Jointer Knives | Infinity Cutting Tools

Many thanks,
Andy

**Astrodog** · 29th October 2012, 05:26 PM

How much accuracy/quality is lost would only depend on how far off centre the new hole was I would think.....
I thought enlarging blade holes was a core job of "saw doctors" and good sharpening places....

**groeneaj** · 29th October 2012, 05:43 PM

Originally Posted by Astrodog

I thought enlarging blade holes was a core job of "saw doctors" and good sharpening places....

Yes, that's why I thought also, they were the first people that came to mind when I thought about enlarging the arbor holes. Plus they are only around the corner.
I might try calling them again to confirm.

Andy

**petersemple** · 29th October 2012, 06:44 PM

I have had a saw doctor do several blades for me here in Brissie. They also supplied bushings to make large holes smaller. My saw has a pin that acts as a drive as well, and they happily drilled out the hole for that pin too.

**groeneaj** · 29th October 2012, 09:23 PM

Originally Posted by petersemple

I have had a saw doctor do several blades for me here in Brissie. They also supplied bushings to make large holes smaller. My saw has a pin that acts as a drive as well, and they happily drilled out the hole for that pin too.

Thanks for the reply.
How do the blades go after the bore size has been changed?

**petersemple** · 29th October 2012, 10:43 PM

I have only used one of them so far (I got a few done with different numbers of teeth, and only needed the one so far). That one seemed fine to me.

**malb** · 30th October 2012, 09:18 PM

It is a fairly normal part of a saw doctors role to enlarge the bore of a blade, and they normally do it fairly regularly with blades they are supplying to customers. My understanding is that they use something akin to a step drill which naturally referenced the existing arbor bore, so the blade remains concentric to the bore.
I have used a number of rebored blades, mainly on Brobo's and other metal cutting saws, and have never had any perceptible runout with these blades.
I would have some concerns about doing a dado set as many manufacturers have a hard time getting the outer cutters and chippers perfectly matched, and it would be a big ask to rebore two blades and 6-8 chippers and still expect the set to match as well as or better than they originally did. I also suspect that you lack a way to test the matching of the set before modification. Boring the shims would also be near impossible, these are produced by stamping are are too thin and pliable to bore. You might be able to get the dado set done if you agree to have the full set reground to restore matching, but it would probably be cheaper to replace them if you can find suitable ones.

**metrix building** · 28th December 2012, 09:55 AM

Hi, does anyone have recommendations for places they have used in Sydney who offer the reboring service ?

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