2017 Latest Design Carbon Steel to Cancun Manufacturers

Our 1/2 mill was a little worn out but handled this block of H13 just fine.
Macro Code in the details. (written for a Fanuc oi-md controller)
Specs
RPM=5000 IPM=80.0 DOC=1.065
Endmill=1/2 SGS Z-Carb
MRR= 2.1 in^(3) (Could go faster but e-mill is worn)

Macro:
N300(TOOL 17 – 1/2 .125R MILL)
G90G80G40G20
T17M6
S5000M3
(SPIRAL MILL HOLE 1)
#500=.245(MILL RADIUS)
#510=1.065(HOLE DEPTH)
#520=-4.182(X HOLE CENTER)
#525=-2.187(Y HOLE CENTER)
#600=1.35(STARTING HOLE DIA)
#601=2.5(FINISH HOLE DIA)
#605=4(DEG INC FOR DIA INCREASE)
#610=.02(RAD INC PER REV.)
#615=#610/[360/#605](RAD INC PER DEG INC)
#620=[#600/2]-#500
#625=[#601/2]-#500
#700=180(DEG START)
#710=#620
G0G54.1P29X#520Y#525
G0G43H17Z.1
G1Z-#510F80.
G1X[#520-#620]F50.
WHILE[#710LT#625]DO1
#720=SIN[#700]*#710
#730=COS[#700]*#710
G3X[#520+#730]Y[#525+#720]R#710F80.
#700=[#700+#605]
#710=[#710+#615]
IF[#700EQ360]THEN#700=0
END1
G1X#520Y#525F50.
G1X[#520-#625]F50.
G3I#625F60.
G1X#520Y#525
G0Z1.0
G0Z4.0M9
M1