Increase the drilling depth of your auger bit with a Digga extension.

Available for drive units with 2" hex, 2.5" hex, 3" hex, and 100mm square shafts, Digga's outer & inner extensions come in sizes ranging from 2', 3', 4', 6', 8' and 10' lengths.

Features:
  • Easy fit design - Digga auger extensions provide you with an easy fit design solution with no adapters required, helping you connect and disconnect your augers faster.
  • Reduce excess play - With a welded hub and shaft, these auger extensions reduce excess play in the connections, ensuring you drill a straighter hole.
  • Telescopic Design (XT25 & XT40) - A telescopic design makes it easier to drill deeper as well as easier to transport. Inner extensions can be slid inside outer extensions and augers saving space and reducing loading time.
  • Various Lengths available - Length options available including 2 ft. / 3 ft. / 4 ft. / 6 ft. / 8 ft. & 10 ft.extensions.
  • American made quality - Our quality products are manufactured in-house by Digga in America. We use only the highest grade materials and strictest quality control.
  Outer - XO20 Outer - XO25 Inner - XT25 Outer - XO30 Outer - XO40 Inner - XT40 Outer - XO40-HD
Type Outer Outer Telescopic (Inner) Outer Outer Telescopic (Inner) Outer
Auger Bit Suitability A4 / RC4 A6 / RC6 / DR6 / A8 / RC8 A6 / RC6 / DR6 / A8 / RC8 RC10 RC11 RC11 RC11
Drive Suitability 1MDS - 4DSS 4DDS - 7DDS 4DDS - 7DDS 9DDS - 16DDS 20DDS - 30DDS 20DDS - 30DDS SD45 - SD70
Machine Suitability Up to 4.5 ton. Up to 15 ton. Up to 15 ton. 13 - 16 ton. Up to 30 ton. Up to 30 ton. Up to 50 ton.
Maximum Torque 5000 ft.-lbs. 11500 ft.-lbs. 7000 ft.-lbs. 16100 ft.-lbs. 30800 ft.-lbs. 30800 ft.-lbs. 70000 ft.-lbs.
Standard Hub 2.0 in. Hex 2.5 in. Hex 2.5 in. Hex 3.0 in. Hex 100 mm Square 100 mm Square 100 mm Square
Body - Dia x Wall (in.) 3.5" x 0.3" 5.5" x 0.337" 2.5 in. Hex 6.75" x 0.375" 8.625" x 0.322" 100 mm Square 8.625" x 0.5"
Length Options (ft.) 2' / 3' / 4' / 6' / 8' 4' / 6' / 8' / 10' 4' / 6' / 8' 4' / 6' / 8' / 10' 6' / 8' / 10' 6' / 8' / 10' 6' / 8' / 10'
Availability Stock Item