Hi Frank S,
You are absolutely right.
As you said the coarse tooth blades do the job much easier.
Also using the fine tooth blades with a little bit of petroleum then can be does the cut easier but not like the coarse tooth blades.
Unfortunately a couple of years ago I had lend to my neighbor the last blade from a pack of twelve pieces that I had buy at 90’s, that he broke it at the first use.
I have searched many times and I can’t find such blades at my city's market any more.
Perhaps it is an accessory that dying, if it hasn't die yet.
But I think that we can live without that.
Regards
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