42HS2A40 NEMA17 1.7A 2.55V 5.18: 1 Planetary Gear Stepper Motor, Find Details and Price about Gear Motor Stepping Motor from 42HS2A40 NEMA17 1.7A 2.55V 5.18: 1 Planetary Gear Stepper Motor - Changzhou Bangyi Machinery Co., Ltd.