14
DRILL FEEDS (mm / rev.)
FEED / REV (mm)
DRILL DIAMETER (mm)
HOWTOUSE THE DRILL FEED CHART
1. Locate Feed Curve (as given in the application data pages 11
& 13) on the right hand side of the drill feed chart.
2. Locate Drill Diameter along bottom axis of chart.
3. Determine point of intersection of Feed Curve and Drill Diameter.
4. Project horizontally from point of intersection to left hand side of
chart and read off nearest FEED / REV (mm).
5. Select nearest feed on drilling machine within ± 20% of chart
figure.
DRILL FEED CURVE CHART
