Description:
This Mercury Motor Stepper from Sparkfun is our standard Stepper motor. It combines small footprint (42 x 42 mm), low current (0.33 A) with a nice torque (2.3kg*cm).

This is a 12V Bipolar 4-wire Stepper Motor. This stepper features 1.8° Step Angle.

Specifications:

• Motor Type: Bipolar Stepper (4-wire)
• Step Angle: 1.8°
• Step Accuracy: 5 %
• Holding Torque: 2.3 kg·cm
• Recommended Voltage: 12 V DC
• Rated Current: 330 mA
• Coil Resistance: 32.6 Ω
• Shaft Diameter: 5 mm
• Mounting Plate Size: NEMA - 17

Resources:
More information to be found in the Stepper User Guide