Spiral Digger Derrick Auger

Spiral Digger Derrick Auger

For Digger Derricks

Tackle the most severe, rocky conditions with the Spiral Digger Derrick Auger.

Armed with an aggressive arrangement of C31HD Plus™ Bullet Teeth, Digger Derrick Spiral Augers are your secret weapon for overcoming severe conditions.


  • Type-2 spiral design
  • 1-inch boring head flighting
  • 1/2-inch carrier flighting
  • 4-inch diameter auger stem with 3/8-inch wall
  • Long-lasting C31HD Plus™ Bullet Teeth
  • Continuous Stoody 121-G hardfacing
  • AugerGuard™ Coupling

Join Our Newsletter

Sign up for our newsletter to receive the latest Belltec news, new product announcements, and special promotions right in your inbox.