Chapter 4: Filing & Grinding | Metal Arts Press
Chapter 4 Filing & Grinding The purpose of education is to replace an empty mind with an open one. —Malcolm Forbes Section I – Filing Basics Introduction Hammers, cold chisels and punches are blacksmith tools adopted by machinists, but files are the machinists' first and most basic tool. Since 1100 years bc, crude files in the form of stones with ridges running at right angles