LST1G+HD Soil Sampling Drill

The LST1G+HD geotechnical drill rig offers enhanced power and capabilities compared to the LST1G+, including a planetary reduction gearbox for up to 1,100 foot-pounds of torque, increased pull/push-back force and a strengthened steel frame. The drill includes a tower, cathead, pulley and 140-pound manual safety hammer to facilitate standard penetration testing. A 25-horsepower Honda gas engine with EFI and electronic governor powers the 3,000-psi hydraulic system, which achieves a rotary speed of 100 rpm with as much as 1,100 foot-pounds of torque. The drill can be mounted to the bed of a small truck or flatbed using specially designed frames.

  • Drilling Depth: 100 ft (30.5 m)
  • Borehole Diameter: 6 in (15 cm)
  • Pull/Push-Back Force: Up to 8,500 lbs (3,855.5 kg)
  • Soil Types: Sand, clay & soft rock formations
  • Applications: Soil sampling, geotechnical testing, standard penetration testing (SPT) and well monitoring

Package Includes:

  • Honda  iGX800 25-horsepower gas engine
  • 3,000-psi hydraulic system
  • Tower and cathead for SPT
  • Hydraulic lift cylinder to raise and lower the mast
  • Tool box & spare parts

Augers & Bits:

  • 3- to 8-inch diameter D-series augers available in 3-, 4- or 5-foot lengths
  • 6-inch outside diameter (2.75-inch inside diameter) or 8-inch outside diameter (3.75-inch inside diameter) hollow stem augers
  • Standard point and blade for soft soil, carbide blade for medium to hard soil, and rock tooth auger for hardpan and weathered formations


  • Single axle
  • 3,500-pound (1,590-kg) rating
  • Towable by ATV or truck
  • Three leveling jacks
  • 2-inch ball coupler
  • Spare tire

Optional Components:

  • 140-pound manual safety hammer
  • Soil Sampling Kit
  • Split spoon samplers
  • AWJ drilling rod
  • Anchor kit to push beyond the weight of the trailer
  • Specially designed frame to mount on a truck or flatbed



Drilling Depth

Borehole Diameter

Pull/Push-Back Force

Operating Weight

Auger Diameter

Auger Length

Max Drilling Torque




Fuel Tank Capacity

Hydraulic Reservoir



100 ft (30.5 m)

6 in (15 cm)

Up to 8,500 lbs (3,855.5 kg)

1,950 lbs (884.5 kg)

3 - 8 in (7.6 - 20.3 cm)

3, 4 or 5 ft (.91, 1.22 or 1.52 m)

1,100 ft-lbs (1,491.4 N-m)

Heavy-duty welded steel

Honda iGX800 25 hp (18.64 kW)

100 rpm at 12.5 gpm (51.1 L/m)

5 gal (18.9 L)

5 gal (18.9 L)

Truck bed or trailer mounted

All trailer-mounted drills can ship fully assembled in a 20-foot container or knocked down and palletized.