Features and Benefits- Genuine Diamond grit impregnated into hardened steel
- Six shapes included are: round, square, 3 square, half round, flat, and knife
- Packaged in a vinyl storage pouch
- Made in U.S.A.
- File all hardened materials from glass to carbide
These diamond files are made in the U.S.A. and have genuine Diamond particles impregnated into hardened steel. This set is a must for hobbyists and technicians. these files can be used on carbide, glass, ceramics and hardened tool steel.