Review on Trend DWS PFR 8 Inch Diamond by Devin Jirsa

This retractable conical diamond file is very handy! The 600 grit is fine and was used by Jimmy Clews on all his flutes. He told me he's been using his flute for over 15 years and it's still going strong. I've also used it very successfully on garden tools and kitchen knives and as it's about the size of a pen I take it with me when I go out hunting for a quick sharpening just when the blade is about to come loose. Excellent quality product!