Products > Drilling > Insert Geometries > Original T-A® Geometries > (-HI) High Impact > Original T-A®: (-HI) High Impact Geometry
Original T-A®: (-HI) High Impact Geometry   
  • Designed for materials with hardness > 200 BHN (700 N/mm²)
  • Enhances chip formation in materials with high elasticity/ductility and poor chip forming characteristics
  • SK corner clip improves tool life
  • Target materials:  structural/cast and forged steels (not suitable for stainless steels)
  • Available in all series
Recommended Materials  
High Temp Alloy
Stainless Steel
Hardened Steel
Cast Iron
Icon Reference

T-A HI: Rotate
T-A HI: Rotate
T-A HI Angle
T-A HI Front
T-A HI Top