Drill SFM Calculator

Calculate Drill Surface Feet per Minute (SFM)



Formula

The formula to calculate the Drill Surface Feet per Minute (SFM) is:

\[ DSFM = 0.2618 \cdot D \cdot RPM \]

Where:

What is Drill SFM?

Drill SFM, short for Drill Surface Feet per Minute, is a measure of the linear tangential distance the surface of the drill travels per minute of time. It is used to determine proper feed rates and total machine times.

Example Calculation

Let's assume the following values:

Using the formula:

\[ DSFM = 0.2618 \cdot 0.5 \cdot 1500 \approx 196.35 \]

The Drill Surface Feet per Minute is approximately 196.35 SFM.