Somebody may say it's a normal 52cc earth auger.In fact,no,it just have a 52cc's plastics.But the inside cylinder size are different.

Two-stage speed shifting vortex gearcase
Transmission Type: Automatic Centrifugal
Transmission Ratio: 31.3: 1
Boring Roting Speed (rpm): 180-210rpm
Boring Rotate Direction: Clockwise
Weight(Without drill bit): 9.3kg
Engine Model: 1E54F
Displacement (CC): 85CC
Max Power (kw/r/min): 4.0kw/7000rpm
Max Torque (N. M/r/min): 2.45
Starting System: Re-coil
Cooling System: Air-cool
Ignition System: C. D. I
Spark Plug: L7T
Fuel Mixed Ratio: Gasoline(25): 2cycle oil(1)
Fuel Tank Capacity (L): 1.2
Drill Bit Dimension: Height: 76cm/100mm
Diameter: 80, 100, 150, 200, 250, 300mm
Package Weight: 13.6Kgs
Packing size: 46*41*30cm