Features 1、Basic Specifications: The grooves width is 0.8-0.8mm, the inner diameter is Φ10mm, the outer diameter is Φ40mm, and the width is 20mm 2、Easy to Use: Wire feed drive rollers is made of wear resistant bearing steel, durable, high strength, and easy to use 3、Accurate Machining: High accuracy, high strength, accurate machining is used to ensure the accuracy of size 4、Applicable Models: Can be widely used for 200A 350A 500A wire feeder, with the exquisite workmanship 5、Long Service Life: Fast and convenient installation, sturdy and durable design, not easy to rust, long service life Specification Item Type: Wire Feed Drive Rollers Material: Bearing Steel, Nylon Applicable Models: For 200A 350A 500A wire feeder Grooves Width: Approx. 0.8-0.8mm / 0.03-0.03in (Note: 0.8-0.8 refers to a welding wire grooves of 0.8mm and one 0.8mm) Inner Diameter: Approx. Φ10mm / 0.40in Outer Diameter: Approx. Φ40mm / 1.57in Width: Approx. 20mm / 0.80in Package List 10 x Wire Feed Drive Rollers