10x diamond file set set key file needle file rasp diamond file metal Features: 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. Specifications: Type:flat parallel, flat taper, round, knife, half-round, three-square and square files Color of shank: blue and red.(We will deliver it randomly). Shank diameter:3mm Surface treatment: Ti Total Length:5 1/2"(140m) Working length:2 3/4"(70mm) Grit: 150 Package Included: 10 Diamond Coated Needle Files Great for Filing & Cutting