NACHI Straight Shank Drill SG-ES Series SGES10.8 Dia. 10.8mm 1pc

Warnings on using the drilling condition tables
1) Adjust drilling condition according to the rigidity of machine or work clampstate.
2) The table values are for drilling with water soluble cutting fluid.
3) Provide sufficent amount cutting fluid to the cutting point and in the flute.
4) Reduce RPM and feed speeds by 20% for holes deeper than 3Dc or when using non-water-soluble
cutting fluids.
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) In step feed, return to the entrance hole.
7) Step feed interval is about 0.5 ∼1 × Dc. In small diameter, about 0.2 ∼0.5× Dc.
8) Use a collet chuck, milling chuck.