TEMO 10 inch (25cm) long Diamond Coated FLAT FILE grit 60 coarse New ONE piece of 10 inch long diamond coated FLAT file. High quality Grit 60 (coarse) diamond coating. Coating : Both sides Suitable for use in grind on glass, marble or rock. Come with plastic sleeve. New ONE piece of 10 inch long diamond coated FLAT file. High quality Grit 60 (coarse) diamond coating. Suitable for use in grind on glass, marble or rock. Come with plastic sleeve. Working area : 1 inch wide x 8.5 inch long (25mm x 215mm). Coating : Both sides