This is a new set of 10 assorted diamond coated needle files
Great for filing glass, ceramic, rock, carbide, gold, platinum, silver or anything else that is hard
Works on all natural materials marble, wood, stone , bone etc.
Used in deburing, fixing chipped glass, mirror, tile, deling, ceramics, many hobbies and professional applications
The diamond working part of each file is around have a variety of shapes which may not be easily identified from the picture: flat, flat on one side/rounded on other, square, triangular, round. All but the flat have pointy ends.