TM48

For more than 30 years, the legendary TM-48 Belltec Digger has been the trusted choice for tractor owners needing to dig post holes with speed and precision.

The TM-48 securely mounts to any three-point tractor with over 28 horsepower. The unique system turns your tractor into a high-performance drilling rig—capable of drilling straight, accurate holes up to 60” deep with a single auger, even through tough materials like solid rock and concrete.

TM-48 models are compatible with category 1, 2, and 3 hitch systems.

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Key Specifications

Purpose: The TM48 is a hydraulic threepoint post hole digger / auger drive designed to convert a tractor’s threepoint hitch into a hole drilling machine capable of drilling straight holes up to ~60″ deep, including in tough conditions like solid rock or concrete when used with the proper augers.
Mount Type: Threepoint tractor hitch mount — available in Category 1, Category 2, and Category 3 configurations (with optional leveling models) for mounting on tractors with compatible threepoint systems.
Compatibility: Intended for use on threepoint tractors with at least two remote hydraulic valves and minimum ~28 hp–50 hp, depending on application; connects to the tractor’s hydraulics for down pressure and uses the tractor PTO to power the auger drive.
Drive & Hydraulics:
– Hydraulic down pressure system with twin cylinders for controlled feed and hole depth.
– Hydraulic circuitry includes a relief valve adjustable for down pressure to match conditions.
– Uses tractor PTO to drive the heavyduty auger gearbox with automatic torque limiter for overload protection.
Drilling Capabilities:
– Designed to drill holes up to ~60″ deep on a single auger.
– Capable of drilling in varied ground conditions including solid rock and concrete with appropriate auger tooling.
Weight: 1,100 lbs
Leveling Options: Available standard (flat) model or models with hydraulic leveling cylinders to keep auger vertical on slopes during drilling.

Product Literature

TM48 SSA Auger

SSA-Series Augers are a lightweight and cost-effective solution for drilling in loose soil types. The double flight design and pilot bit work well in dirt, clay, and loose rock.

TM48 SRA Auger

SRA-Series Augers are designed for drilling in solid and fracturable materials. The cluster head drills in shale, concrete, limestone, dolomite, and weathered granite.

TM48 RAD Auger

RAD-Series Augers specialize in cutting through tough cobble, boulders, fractured and solid rock. The advanced rock-crushing boring head works for various ground conditions.

TM48 Spiral Auger

The Spiral Series will increase your productivity in hard ground. Its conical design and aggressive arrangement of bullet teeth will pulverize concrete, fracturable rock, and solid rock.