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Indexable Ball Nose / Back Draft Finish Milling Tools

Indexable Milling/Ball Nose / Back Draft 

Over 35 years ago, DAPRA forged a new approach to finish machining with the indexable Ball Nose tooling, setting the benchmark for precision and finish. Today, our comprehensive Ball Nose and Back Draft tooling lineup continues to evolve, providing machinists with unmatched versatility, accuracy, and efficiency in complex milling operations.

Engineered for demanding finishing operations, DAPRA’s Ball Nose tools excel in achieving tight tolerances and exceptional surface finishes, making them indispensable for unattended contour finishing, as well as precise cavity and core semi-finishing and finishing operations.

Indexable ball nose finish milling tools
  • Ball Nose Tools: Ideal for intricate 3D milling including contouring, fine finishing of complex slopes, curves, and detailed surfaces, delivering superior results even in challenging machining scenarios.
  • Back Draft/Bull Nose Tools: Specifically designed for precision machining of tapered surfaces and deep, straight walls—ensuring consistent quality and minimal tool deflection.


Ball nose / back draft finish milling applications and materials


Ball Nose / Back Draft Single-Sided Insert Platform
  • Extensive range of cutters and insert geometries optimized specifically for roughing, semi-finishing, and precision finishing operations.
  • Ideal solution for achieving superior surface finishes in finishing and light semi-finishing applications.
  • A larger total cutting angle delivers exceptional versatility across a variety of contouring tasks.
  • Effectively handles “lacing” operations and is capable of slight undercutting for complex machining profiles.
Ball Nose / Back Draft Double-Sided Insert Platform
  • Spherical, twin-edge ball nose inserts deliver unmatched cost-per-edge.
  • Enhanced carbide thickness provides exceptional heat dissipation and superior resistance to machining stresses.
  • Advanced SBD back draft-style geometry ensures precise cutting accuracy and consistently superior surface finishes.
  • Ideal for finishing operations requiring cutting angles above 180°; not recommended for undercutting operations.

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