1 Pembubutan tangkai senter putar 1-9 2 Pembubutan senter 10-14 3 Pembubutan penutup senter 15-20 4 Pengerindaan tangkai senter putar 21-26 5 Penggerindaan senter 27-34 6 Pengefraisan tool holders 35-44 7 Perbuatan tangkai tap 45-63
Productivity measurement, Evaluation, Planning, and Improvement in Manufacturing, and Service organizations