Mold Base Applications | Yasda Precision America YASDA, precision tools, CNC jig borer, jig borers, precision center, precision centers, precision center 5-axis, micro center, micro centers, microcenters Mold Base Following global developments and growth of production such as high performance motors and plastic containers, etc., the accuracy of mold bases has dramatically increased. Yasda developed the YBM1218V in 1998 to provide the highest finish milling accuracy for mold bases.