Knurling wheel Image: about 0.5mm, 1.0mm, 2.0mmKnurling wheel diameter: 20 mm/0.79 inch0.5mm diagonal linear knurling wheel:Knurling pitch: 0.5mmNet pulley diameter: about 26mm / 1.02 inchAperture: about 10 mm/0.39 inchFlower wheel thickness: approx. 8 mm/0.31 inch1mm diagonal linear knurling wheel:Knurling pitch: 1.0mmKnurling wheel outer diameter: about 26mm / 1.02 inchesAperture: about 10 mm/0.39 inchKnurling wheel thickness: about 8 mm / 0.31 inch2mm diagonal linear knurling wheel:Knurling pitch: 2.0mmKnurling wheel outer diameter: about 26mm / 1.02 inchesAperture: about 10 mm/0.39 inchKnurling wheel thickness: about 8 mm / 0.31 inchTotal size: 25 x 8mm / 0.31 x 0.98 inch (outer diameter x thickness)Colour:BlackMaterial:SteelPackage Contents:1 * Knurling tool6 * knurling wheelOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. About Shipping: All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.Any questions, please feel free to contact us During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours, wish you a happy shopping Thanks for your cooperation and we'll make you feel satisfied.