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Drive Stepper Motor Screw 2‑Phase 4‑Wire Linear Stepper Motor Screw Slide Table 4‑9V Drive Voltage 18° Step Angle for DIY Engraving Machine Small Measuring Equipment Slider with Linear Nut Slider home2022 Leather Craft Tool Hole PunchesDrive Stepper Motor Screw 2Phase 4Wire Linear Stepper Motor Screw Slide Table 49V Drive Voltage 18 Step Angle for DIY Engraving Machine Small Measuring Equipment Slider with Linear Nut Slider Specification: Condition: 100% Brand NewItem Type: Stepper Motor ScrewMaterial: Stainless SteelColor: As picture shownMotor Type: 2 Phase 4 Wire SystemDrive Voltage: 4 9V 100 500mA (the higher the voltage, the greater the force, the greater the heat)Screw Length: