Rotation of drill at its axis
Rotation of work piece that being drilled
Rate of material removed by drilling
Distance travelled by a drill over the job in one minute
Amount of material the drill removes
Drill advances in one complete rotation
Total depth of the drilled hole
Width of the chip removed by drill
Mineral oil
Air
Soluble oil
Chemical or synthetic soluble oil
0.2
0.15
0.1
0.05
Chemical solution
No cutting fluid