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4 series augers - up to 5t

Our 4 Series augers are specially designed for mini loaders, skid steer loaders, and excavators up to 5 tonnes. For efficient drilling, the key is an effective auger cutting head. Depending on the ground condition, you can choose between a bladed cutting head, a tapered cutting head, or a rotating rock pick design. Need to drill deeper? Digga has a full range of auger extensions available to suit your specific requirements. Digga Augers come complete with Easy PADLOC knock in and out teeth which require no special tools.

a4 earth

the A4 is the Contractor's choice able to drill holes in earth and clay and designed specifically for the tough Australian conditions. Available in Earth, Tungsten, or MFT for general drilling.

RC4 earth/rock

Digga's RC4 Augers come with tapered tungsten teeth which are designed for drilling in earth, shale, asphalt, permafrost and fracturable rock. Easy knock in and out teeth require no special tools.

DR4 dedicated rock

Featuring rotating rock picks specially designed for drilling from soft fracturable rock to very hard rock. DR's also feature short flighting to encourage regular spoil removal, allowing cool air to enter the hole, and facilitate regular inspection of teeth.

hub options

Match the hub style of your existing auger drive or drilling rig with square and round hub options.

Wearparts & pilots

Our extensive range of quality wear parts and pilots are designed to suit most ground conditions. Choose between flat/chisel, tapered tooth or rotating rock pick configurations.

custom solutions

Our experienced drilling specialists will help you in constructing the right auger for your needs. Everything from the right cutting head to flight and pitch configurations and also choosing the right wear parts and accessories. See custom augers.

Features & benefits

  • Replaceable pilots available in Tungsten or Multi Faced Tungsten
  • Round or square hub options available to suit your existing drive unit or drilling rig
  • Shallow pitch flights for optimum removal of spoil
  • Variety of cutting head solutions and wide range of wearparts and pilots to suit most ground conditions
  • Drive adaptors & extensions available to maximise drilling depth
  • Locally made quality augers using superior materials
  a4 rc4 dr4
Drilling Conditions GENERAL COMBO EARTH & ROCK DEDICATED ROCK
Hub 65 mm Round 65 mm Round 65 mm Round
Optional Hub 50.8 mm Round / 57 mm Square
/ 75 mm Square
50.8 mm Round / 57 mm Square
/ 75 mm Square
75 mm Square
Overall Length 1200 mm 1200 mm 1200 mm
Flights (Lead) 8 mm 8 mm 12 mm
Flights (Carry) 8 mm 8 mm 10 mm
Teeth TS TT 19 mm Rotating Rock Pick
Pilot PM-SQ PM-HX-3 DP-UAP-API-SA
Ideal Drives PDD-PD4 PDD-PD4 PDD-PD4
Optimum Drilling Speeds - rpm
Earth 55-65 55-65 N / A
Clay 45-55 45-55 N / A
Shale 25-45 25-45 25-45
Heavy Rock N / A N / A 10-25
Guide is a recommendation only.