AT-0312A Motor
  No-load speed: 400 RPM
  Air consumption: 0.3 m³
  Tool weight: 1.5 kg
  Tapping capacity: Copper/Aluminum M12 / Iron M10
  Tap guard: Yes
  Operating air pressure: 6.3 kg
  Air Inlet: 1/4"

Tapping Motor (Model B)
  Tapping Range: M1–M12
  RPM: 400
  Chuck Shank Diameter: 19 mm
  Operating Air Pressure: 6–8 kg
  Mounting Diameter: 38 mm
  Tool Weight: 1.75 kg
  Tapping Capacity: Aluminum/Iron M23 / Steel M20

Tapping Motor (Model C, same specifications as Model B)
  Tapping Range: M1–M12
  RPM: 400
  Chuck Shank Diameter: 19 mm
  Operating Air Pressure: 6–8 kg
  Mounting Diameter: 38 mm
  Tool Weight: 1.75 kg
  Tapping Capacity: Aluminum/Iron M23 / Steel M20

Tapping Motor (Model D)
  Tapping Range: M3–M16
  RPM: 250
  Chuck Shank Diameter: 19 mm
  Operating Air Pressure: 6–8 kg
  Mounting Diameter: 44 mm / 56 mm
  Tool Weight: 1.75 kg
  Tapping Capacity: 45# Steel M25