a $1/2"$ mill for diameter cutter and $1/4"$ radius cutter. Use the $1/4"$ radius cutter and add$/$subtract to the following dimensions in both absolute and incremental.. The depth is $0\mathrm{.}250$

N$5$G$0$G$17$G$20$G$40$G$80$

N$10$G$0$G$91$G$28$Z$0$

N$15$T$1$M$\_$F$20$

N$16$G$90$G$\_$X$-\mathrm{.}25$Y$-\mathrm{.}8$S$4000$M$3$

N$18$G$\_$H$\_$Z$\mathrm{.}1$M$8$

N$20$G$1$Z

N$25$Y$0$

N$30$G$91$Y$\_$ P$1-$P$2$

N$35$X$\_$ P$2-$P$3$

N$40$Y$\_$ P$3-$P$4$

N$45$X$\_$ P$4-$P$5$

N$50$Y$\_$ P$5-$P$6$

N$55$G$90$

N$60$X$\_$ P$6-$P$7$

N$65$Y$\_$ P$7-$P$8$

N$70$X$\_$ P$8-$P$9$

N$75$Y$\_$ P$9-$P$10$

N$80$X$\_$

N$85$Z$-$

N$87$G$0$G$91$G$\_$Z$0.$Y$0.$M$\_$

N$90$M$\_$

N$95$M$\_$