TMG-SAG04 4-Inch Auger Bit for Skid SteersBudget
🟡 High Flow
View on tmgindustrial.ca →
Overview
The TMG-SAG04 is a 4-inch diameter auger bit for skid steer auger drives, used for small post holes, T-post starters, landscape planting, and soil sampling where a 3-inch bit is too tight. The 4-inch diameter opens up a bit more room for line posts and small planted tree stock compared to the narrower 3-inch version. Connects to compatible TMG auger drives via hex drive coupling. A straightforward specialty bit for fence installers and landscape contractors who need the smallest practical drilled hole. Sold direct from TMG Industrial Canada.
Canada Availability
Available direct from TMG Industrial Canada (tmgindustrial.ca).
Key Facts
- Model: TMG-SAG04
- Bit diameter: 4 inches
- Application: small post pilot holes
- Mount: hex drive
- Typical bit weight: 18–28 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 TMG Industrial in Canada
TMG Industrial imports and distributes a broad range of construction attachments from its Canadian warehouses, offering competitive pricing with delivery across Canada. A popular choice for contractors who want solid value without long lead times.
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
✅ Last checked: March 2026
Source: skidsteerattachments.ca/catalog/augers/tmg-sag04-auger/
