I have used Diablo's in my circ-saw. I have also used other carbide tipped blades for it. All of them do a better job than the stamped steel blades that have come with those saws. I have a collection of TK blades that I run on my zipcode saw (I wish I could find something this saw can't do so I can justify an upgrade ) and they all give good results. These are Freud Avanti (from back when Freud used this name), Leitz, and Forrest. I have three full kerf blades from Carbide Processors and there is a marked difference in cut quality. This does not mean I do not use my TK blades, I do. This does not mean that Diablo blades aren't good, they are.
Voit makes a perfectly good baseball but, a lot of people use Spaulding, and I think Rawlings is the MLB standard. I don't know anything about sports so I'm not sure why I tried that analogy . The point is that if you are getting the result you want, you're using the right gear. I have a few blades that I paid $25 - $50 for and I have probably had at least 1 of each sharpened. The lower end blades probably won't take another sharpening in the real world despite the maker's claims.
Like you, I look at the cost of replacement versus sharpening and toss my $5 router bits and $25 blades. As LOML always says "another sale will come along". The $100+ blades have such a massive hunk of carbide on them that I would conservatively plan on 10 sharpenings even if the guy was a hack. So, $25 blade + $20 to sharpen = 2 blades for $45 - not bad. $100 blade + $20 to sharpen ten times = [$100 + ($20*10) = $300, so $300 for 11 blades = $27 per blade over the life of the blank for a top end blade. Makes them all 'about' equal doesn't it? Fun stuff
Last edited by glenn bradley; 12-31-2012 at 03:16 PM.
Any sufficiently advanced technology is indistinguishable from magic.
- Arthur C. Clarke