Built for power and endurance — dig precise holes for fence posts, poles, or trees with ease.
The BEFCO Mole 400-512 HP18-90 is engineered for demanding jobs — ideal for users with tractors in the 18–90 HP range. Its robust construction and heavy-duty gearbox deliver consistent, reliable digging power for setting fence posts, planting trees, installing poles, or other deep-hole needs in tough soil conditions.
Thanks to its reinforced boom and yoke, plus a powerful 4:1 gearbox geared for ~135 RPM auger speed, the Mole 400-512 stays stable under heavy load — giving you smooth, clean holes even with larger-diameter augers.
Choose from a wide range of auger diameters (6", 9", 12", 18", 24", 30") and lengths (36", 48") to suit varying hole sizes. Each auger features fully welded flighting, a reinforced mounting collar, and a replaceable cutting point — letting you adapt to different tasks and soils, and simplify maintenance.
If you need a dependable, versatile post hole digger for farms, vineyards, fencing jobs or landscaping work — and you run a mid-to-high HP tractor — the Mole 400-512 HP18-90 is built to handle the workload while delivering consistent results.
Heavy-Duty Reinforced Frame & Hitch
Reinforced 3½″ boom and 2⅞″ yoke provide unmatched strength and stability — perfect for demanding jobs with larger augers.
High-Torque 4:1 Gearbox (≈135 RPM)
PTO-driven gearbox delivers consistent torque and smooth drilling, ensuring reliable performance even in dense soil.
Wide Range of Auger Options
Choose from diameters 6"–30" and lengths 36" or 48", giving flexibility for everything from light planting to heavy-duty post or pole installation.
Fully Welded Flighting & Replaceable Cutting Heads
Augers use fully welded flighting with replaceable knives and points — extending service life and easing maintenance.
PTO Shield & Safety Shear-Bolt Driveline
Comes with heavy-duty shielded PTO shaft and enclosed shear-pin safety driveline for safer operation.
Compatibility & Versatility
Works with 18–90 HP tractors and Cat. 1/2 hitches — suitable for a wide range of compact to mid-size agricultural tractors.
| Tractor Power Requirement | 18–90 HP |
| Hitch Category | Category 1 & 2 (3-point hitch) |
| Boom Diameter | 3.5″ (reinforced) |
| Yoke Diameter | 2.875″ (reinforced) |
| Gear Ratio | 4:1 |
| Approx. Auger Speed | 135 RPM |
| Output Shaft | 2″ |
| Driveline | 1 3/8″ ASAE Cat. 3 — shear bolt |
| Compatible Auger Diameters | 6″, 9″, 12″, 18″, 24″, 30″ |
| Available Auger Lengths | 36″ or 48″ |
| Implement Weight | 256 lb (shipping approx. 305 lb) |
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