Products > Drilling > Insert Geometries > Original T-A® Geometries > (-HR) High Rake > Original T-A®: (-HR) High Rake Geometry
Original T-A®: (-HR) High Rake Geometry   
  • Designed for materials with hardness < 200 BHN (700 N/mm²)
  • Improves chip formation in materials with very high elasticity/ductility, extremely poor chip forming characteristics, and low material hardness
  • SK corner clip improves tool life
  • Target materials:  soft steels, steel castings and forgings (not suitable for stainless steels)
  • Available in all series
Recommended Materials  
High Temp Alloy
Stainless Steel
Hardened Steel
Cast Iron
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