McMillen 16-Inch Auger Bit for Skid Steers🔵 Mid
🟡 High Flow
⚠ High-flow machine required
✓ Compatible with high-flow CTL
✓ Fits most skid steers, including small-frame
View on mcmillenauger.com →
Overview
McMillen's 16-inch auger bit is a large-diameter drilling bit for deck piers, large post holes, and mid-size foundation footings on full-size skid steers. Compatible with McMillen's high-torque auger drive units including the X2475 and X3575 models. Carbide-tipped flighting cuts through mixed soil, gravel, and compacted ground effectively. McMillen is a leading US auger manufacturer with over 50 years of experience and Canadian dealer presence through equipment dealers and specialty suppliers. Available through authorized McMillen dealers in Canada.
Canada Availability
Available in Canada through McMillen dealers.
Key Facts
- Bit diameter: 16 inches
- Application: large post holes and deck piers
- Drive: McMillen auger drive
- Mount: hex drive
- 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
🔧 Machine Compatibility
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 McMillen in Canada
McMillen is a US-based manufacturer of auger drives and bits with a long track record in North American construction and agricultural markets. Their heavy-duty auger systems are available through equipment dealers across Canada and are built to handle demanding soil and rock conditions.
Care & Maintenance
- Grease the drive unit gearbox per the manufacturer's schedule — typically every 8 hours of operation; a starved gearbox is the most common cause of drive unit failure
- Inspect bit carbide teeth after every use in rocky or abrasive soil — worn or chipped teeth increase drive unit load and reduce penetration
- Replace a worn pilot bit before the main teeth wear — the pilot centers the bit and prevents wobble that stresses the drive unit gearbox
- Check hydraulic hose connections at the drive unit before each use — hose chafing in tight soil is a common failure point
- Store bits vertically or with exposed carbide protected — storing lying flat with unprotected carbide causes chipping from incidental contact
How to Connect
- Attach auger drive head using Bob-Tach
- Connect high-flow hydraulic couplers (colour-coded on most brands)
- Verify rotation direction — auger should rotate clockwise when viewed from above
- Lower auger to ground and test rotation at idle before digging
⚠ Safety NoteAugers typically require 15-35 GPM — verify your machine's aux hydraulic flow before connecting
Ready to Buy in Canada?
Pricing varies by region and dealer stock levels change seasonally. For current availability and a real quote, contact a local dealer.
Find a Dealer Near You →
Complete the job — you might also need:
✅ Last checked: March 2026
Source: skidsteerattachments.ca/catalog/augers/mcmillen-auger-16in/
