IronBull 18-Inch Auger Bit for Skid Steers
Overview
IronBull's 18-inch auger bit is a large-diameter drilling attachment for skid steers used on foundation pilings, tree spade holes, and larger utility installations. The 18-inch bore diameter accommodates sonotube forms for deck piers and major post foundations. Carbide-tipped flighting handles mixed soil and gravel. Available from IronBull Canada with free shipping.
Canada Availability
Best for: foundation pilings, deck piers, large tree planting
Compare with: Baumalight 10 Inch Skid Steer Auger Bit · Baumalight 12 Inch Skid Steer Auger Bit
Key Facts
- Bit diameter: 18 inches
- Type: auger bit for skid steer auger drive
- Cutting teeth: carbide-tipped
- Application: foundation pilings, deck piers, large tree planting
- Drive unit: compatible with standard skid steer auger drives
- Typical bit weight: 50–80 lbs
- Hydraulic flow: determined by auger drive unit (typically 15–30 GPM standard flow, 30–45 GPM high-flow for large drives)
Is This Right For You?
✅ Buy if…
- You already have an auger drive unit and need the right bit for your soil type or hole diameter
- You drill specific hole sizes for fence posts, footings, or tree planting and need diameter variety
⛔ Skip if…
- You don't have an auger drive unit — a bit alone does nothing without a compatible drive motor
- Your soil is solid rock or hardpan — standard earth bits fail fast, you need a dedicated frost/rock bit
🔍 Also consider…
- Rock or frost auger bit if your ground is caliche, Shield rock, or frozen Prairie soil
- Auger drive unit if you don't yet have one compatible with your machine's hydraulic flow
Compatible with all skid steer brands and compact track loaders via universal SSQA quick attach. Mid-frame machines (S450–S650 class) are the most common fit.
About IronBull in Canada
IronBull attachments are distributed across Canada through online and dealer channels, offering competitive pricing on workhorse models suited to farm, construction, and municipal use.
✅ Last checked: March 2026