6.10 References
Tim A. Bacon
Mitsubishi Materials. (n.d.). History of cutting tools. Retrieved May 14, 2024, from https://www.mmc-carbide.com/permanent/courses/91/history-of-cutting-tools.html
O*Net Online. (2024, April 30). Machinists. U.S. Department of Labor. Retrieved May 14, 2024, from https://www.onetonline.org/link/summary/51-4041.00 CC BY.