Need step by for the G$-$ code Please and this below is the tool being used and material. This added information.

$1/2"$ Dia. HSS End Mill, $2$ Flute, Uncoated, $1/2"$ Weldon Shank $x1-\frac{1}{4^{?}}$ LOC, Square Profile, HM$2$

$03-2065$

All Haas Tooling Products $$

Shop Haas Tooling $/$ Mill Tooling $/$ End Mills $/03-2065$

All prices and specifications subject to change without notice. Actual product appearance may differ.

$1/2"$ Dia. HSS End Mill, $2$ Flute, Uncoated, $1/2"$ Weldon Shank x $1-1/4"$ LOC, Square Profile, HM$2$

Part #: $03-2065$

EIM $2F\frac{11}{2}x\frac{1}{2}x1-\frac{1}{4}x3-\frac{1}{4},$WF