NACHI Straight Shank Drill SG-ESR Series

Warnings on using the drilling condition tables
1. Adjust drilling condition according to the rigidity of machine or work clamp state.
2. The table values are for drilling with water soluble cutting fluid.
3. Provide suffice amount cutting fluid to the cutting point and in the flute.
4. Reduce RPM and feed speeds by 20% for holes deeper than 3Dc.
5. When for hole depth more then 3 × Dc deep, add step feed. However, a work material and drilling condition to chip
removal may be worse. In that case, add A even if drilling depth 3 × Dc is as follows.
6. When for stainless drilling, add step feeding.
7. In step feed, return to the entrance hole.
8. Step feed interval is about 0.5-1 × Dc. In small diameter, about 0.2-0.5× Dc.
9. Use a collet chuck, milling chuck.

It is an extensive drill that supports a wide range of work materials from steel to stainless steel and aluminum.