This standard specifies the general dimensions of straight shank end mills (hereinafter referred to as end mills) with brazed cemented carbide twisted blades.
JIS B 4114:1998 history
1998JIS B 4114:1998 End mills with brazed helical hardmetal tips -- Part 1: Dimensions of end mills with parallel shank
1993JIS B 4114:1993 Parallel shank end mills brazed with cemented carbide tips