This Handy File is made of high carbon hardened steel and is suitable for second cut grade plastic laminate edge finishing. It is 10 inches long and has a thickness of 0.039 inches. The package includes one handy file. The flat mill file is made of high carbon hardened steel and has a hardness of HRC60-62. It is suitable for second cut grade plastic laminate edge finishing. The package includes one handy file. It is easy to use and can be used for a long time.