Suitable for grinding the split point or notched point of twist drill.
Max,speed can be up to 70m/s.
Heavy-duty and less dressing per time.
For sharp cutting edges and accurate geometry.
Single crystal aluminum oxide and silicon carbide grains.
Fince grit abrasives for excellent surface finish.
Machinery Recommended: (MADE IN USA)Normac or Winslow split/notched point grinders.