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
Pololu - Sanyo Pancake Stepper Motor with Encoder: Bipolar, 200 Steps/Rev, 42×31.5mm, 5.4V, 1 A/Phase, 4000 CPR
Pancake Stepper Motor Nema17 Lightweight with 1m Cable 23mm 1.8 Degree for 3D Printer BMG extruder upgrade - Smith3D Malaysia