PartXpress 12 Inch Diameter, 5 Blade, 25 Degree Pitch, CCW, 5/16 Bore, Compatible with Acme 31215
Linear Stepper Electronic Starter NEMA 17 Stepper Electronic Starter with Lead Screw 20mm Tr8*8 8mm Lead 2mm Pitch Motor Drivers
Stable Characteristics Electronic Starter Power Tools Metal Number of Teeth 8 Silver Small Electronic Starter Tooth Pitch 7.7mm Easy to Use Motor Drivers