Description: The wide range of applications makes this stepper motor very practical and useful. And class E insulation makes it safer for you to use. Easy installation and simple operation will not waste your time. The high-quality and professional workmanship makes it very durable. Made of metal material, it is very durable for you to use. The length of this product is 10.3cm and the width is 2cm. It is widely used in electronic equipment, engraving machines and other small equipment. It moves 0.25mm in one step, if you need to be smaller, you can use a micro-step driver. And its maximum linear velocity is 25mm per second. Item Name: Stepper Motor Material: Metal Pitch: ±0.5mm Color: Silver Color Drive Voltage: 12V DC Insulation Class: E Class Insulation Resistance: 50m DC 500V Insulation Strength: 100vac for One Second Working Temperature: 0-55 Degree Celsius Motor Surface Temperature: 80 Degree Celsius Maximum Starting Frequency: 1100 pps or More Maximum Response Frequency: 1600 pps or More Features: Two-phase, Widely Used, High Precision Size Details: Size: 10.3cm x 2cm/4.1" x 0.8" (Approx.) Threaded Rod Diameter: 0.3cm/0.1" (Approx.) Length of Threaded Rod: 9cm/3.5" (Approx.) Slider Stroke: 8cm/3.1" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. The motor needs an A4988 driver (not included) to drive it, and it cannot directly connect to the power supply. Package Includes: 1 x Stepper Motor