blade thickness?

[Tinker]

I am using my 28 tooth blade on my TS 55 for almost everything.  It is a newer blade so it is 2.2mm kerf.  I want to use an older 48 tooth blade to miter corners some very narrow pieces of maple and walnut for some cheese boards (Christmas presents) I have done narrow corners as thin as 1/4 inch using that blade, but I checked on the specs notes on the blade and it is 2.6mm kerf.  My chip strip along the dyes of my guide rails have all been trimmed to the 2.2mm of the newer blades. 

I am not sure that the 48 tooth blade is sharp enough to miter such thin pieces any more. I don't mind a problem with cutting the dust strip, but if I find the old blade needs sharpening, can the blade be filed to he 2.2mm kerf as the newer blades?, or should i just live with the problem?  It is just about impossible to cut miter corners with my 28 tooth blade with accuracy.
Tinker

 

[neeleman]

The difference between the 2 blades is only 0.2 mm per side.
You will not notice such a small measure and are not even able to work wood with that accuracy!

 

[Tinker]

The difference between the 2 blades is only 0.2 mm per side.
You will not notice such a small measure and are not even able to work wood with that accuracy!

Thanks neeleman.  That's sort of what i thought.  After I posted the question, i got to thinking that no matter what blade i use, I cut just a tad proud and either nibble, plane or sand to exact size.  My problem with mitering using the TS 55 with such thin strips is even with backer strip the tip of the miter seems to bent away from the blade.  That does not happen with my 48 tooth blade.
Tinker