BULZAK, Tomasz, Zbigniew PATER, and Janusz TOMCZAK. “NEW EXTRUSION PROCESS FOR PRODUCING TWIST DRILLS USING SPLIT DIES”. Applied Computer Science 13, no. 3 (September 30, 2017): 55–63. Accessed July 22, 2024. https://ph.pollub.pl/index.php/acs/article/view/3299.