Cross Hole Chamfer (G16? G12.1?)

[Ovrclck350]

I've been trying to find a simple example of chamfering completely around a cross hole. One of my machines has the G12.1 functions, 2 others do not (Citizen L20's).

Can someone show me a simple program section to deburr a .250 cross hole drilled through .500 stock?

Without the G12.1 option, is there another way to do so, or any program that will calculate the Z/C movements?

Thanks!

[g-code_junkie]

This is what is in cnc wizard-just fill in the information required marked by an "*"
(DEBURR CROSS HOLE C AXIS)
(#510=DIAMETER OF CIRCLE)
#510=*
(#511=TURNED DIAMETER)
#511=*
(#512=CENTRE OF CIRCLE)
#512=*
(#513=FEEDRATE)
#513=*

M5 G98
M58 S3=*
T*00
M18 C*
G50 W-0.591
G0 X#814+0.025 Y0 Z#512 T*
G1 X#511-0.05 F#513
G12.1
G16 C#511/2
G1 G41 W#510/2 F#513
G3 W-#510 C0 R#510/2
G3 W#510 C0 R#510/2
G0 G40 W-#510/2
G13.1
G18
G0 X#814+0.025 T0
G50 W0.591
M20 M60 G99

have fun