STEPPERONLINE Nema 17 Pancake Stepper Motor 1A 17Ncm Bipolar 1.8 Degree 4-Lead 23mm Body Length for 3D Printer CNC Extruder, 42x23 : Amazon.co.uk: Business, Industry & Science
42D - Standard (Round) Stepper Motors
20 kgcm Stepper Motor Nema 23, Step Angle: 1.8 Degree