A face milling operation is carried out with a 100 mm diameter milling cutter having 4 teeth and spindle speed of 300 rpm. If the feed per tooth is 0.125 mm, what is the table feed in mm/min?

Correct option is C

​$$\begin{aligned}&\textbf{Given:} \\&\text{Cutter diameter (D): 100 mm (not required for this calculation)} \\&N_t = 4 \quad (\text{Number of teeth}) \\&N = 300 \, \text{rpm} \quad (\text{Spindle speed}) \\&f_t = 0.125 \, \text{mm/tooth} \quad (\text{Feed per tooth}) \\[1em]&\textbf{Calculate Feed Rate (Table Feed)} \\&\text{The table feed } V_f \text{ is given by:} \\&V_f = f_t \times N_t \times N \\[1em]&\text{Substitute the values:} \\&V_f = 0.125 \times 4 \times 300 = 150 \, \text{mm/min}\end{aligned}$$​​