Technical Specs & Catalogues

Download Digga Auger & Earth Drill Brochures

Access official Digga specification sheets, machine tonnage guides, and extension catalogues. Click any brochure below to download your technical PDF from Speir Ard Ltd.

Up to 5 Tonnes

Drilling Augers — 4 Series

Specially designed for mini loaders, skid steer loaders, and mini excavators up to 5T.

Download PDF ↓
Mid-Range Machines

Drilling Augers — 6 Series

Engineered for large skid steers, tracked loaders, backhoes, and medium excavators.

Download PDF ↓
Up to 30 Tonnes

Drilling Augers — 8 Series

Heavy-duty drive units specially designed for backhoes and heavy excavators up to 30T.

Download PDF ↓
Up to 50 Tonnes

Drilling Augers — 10 & 11 Series

Extreme commercial drilling for heavy excavators, telehandlers, and industrial rigs up to 50T.

Download PDF ↓
Light Extensions

Extensions — Up to 5T

Telescopic and rigid auger drive extensions engineered for mini loaders and diggers up to 5 Tonnes.

Download PDF ↓
Heavy Extensions

Extensions — Up to 8T

Heavy-duty drive extensions for backhoes and medium excavators up to 8 Tonnes.

Download PDF ↓
Bespoke Builds

Custom Augers

Tailored auger flighting and drive connection solutions for specialized drilling applications.

Download PDF ↓
Spares & Maintenance

Wear Parts & Teeth

Tungsten teeth, pilot bits, and lock pins designed to suit most augers and ground conditions.

Download PDF ↓
Farm & Fencing

Agricultural Augers

1-man post borers, 3pt linkage, tractor front-mounts, and ramdrills up to 5 Tonnes.

Download PDF ↓
Excavation & Utilities

Download Digga Trencher Brochures

Speir Ard Ltd trenchers deliver precision, power, and efficiency. Ideal attachments for excavators, backhoes, tractors, and skid loaders across Ireland.

1.5T to 3T Diggers

Big Foot Mini Trencher

Compact trenching attachment built specifically for mini excavators and tight site access.

Download PDF ↓
3.5T to 8T Machines

Big Foot Trencher

Standard high-performance trencher for medium excavators, backhoes, and utility pipe laying.

Download PDF ↓
8T to 10T Heavy Excavators

Big Foot XD Trencher

Extra heavy-duty drive design engineered for large-scale civil and agricultural trenching.

Download PDF ↓
Skid Steers & Loaders

Big Foot Mini Loader Trencher

Versatile front-mount attachment for mini loaders and skid steers cutting clean trenches.

Download PDF ↓
Cutting Configurations

Trencher Chains

Earth, Combination, and All-Ground cup tooth chain setups for tough Irish ground conditions.

Download PDF ↓
Tractors & High-Flow

Hydrive Trencher

High-torque planetary drive trencher for tractors and high-flow skid steer loaders.

Download PDF ↓

You Might Also Like

Augers & Earth Drills

Precision hole borers and auger drills for every earthmoving application. From tractor post hole borers to heavy-duty industrial earth drills, we supply the ideal setup including the innovative Digga Halo alignment system.

See Augers →

High-Performance Trenchers

Efficient and reliable trenchers for all ground excavation requirements. Our comprehensive range includes tractor trenchers and mini digger trenchers—perfect for laying cables, pipes, and agricultural irrigation systems.

See Trenchers →

Torque Head - Anchor Drives

Digga screw pile torque heads engineered for mini loaders, excavators, and machinery up to 3.5T. Ideal for restricted or low-access sites, foundation piling, and ground anchor installations.

See Equipment →