I saw that alot of you folks use a moto tool to file hammers, I (even with a hammer file attachment) can not get the results I want. However has anyone else used the new Perma-Grit sanding paddle from Pianotek. It is great, without alot of effort you have complete control. I have done several sets of hammers with my 1st one and it does not show much wear at all. It is not very expensive either, only about $7.00 each. Take care, Clark Hale
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