1. Knurling wheels: Approximately 0.5 mm, 1.0 mm, 2.0 mm<br>2. Diameter of knurling wheels: 20 mm (Approximately 0.79 inches)<br>3. 0.5 mm diagonal straight knurling wheel:<br> - Knurling pitch: 0.5 mm<br> - Net pulley diameter: Approximately 26 mm (Approximately 1.02 inches)<br> - Approximately 10 mm (Approximately 0.39 inches)<br> - Thickness of knurling wheel: 0.8 mm (Approximately 0.31 inches)<br>4. 1 mm diagonal straight knurling wheel:<br> - Knurling pitch: 1.0 mm<br> - Outer diameter of knurling wheel: Approximately 26 mm (Approximately 1.02 inches)<br> - Approximately 10 mm (Approximately 0.39 inches)<br> - Thickness of knurling wheel: Approximately 8 mm (Approximately 0.31 inches)<br>5. 2 mm diagonal straight knurling wheel:<br> - Knurling pitch: 2.0 mm<br> - Outer diameter of knurling wheel: Approximately 26 mm (Approximately 1.02 inches)<br> - Approximately 10 mm (Approximately 0.39 inches)<br> - Thickness of knurling wheel: Approximately 8 mm (Approximately 0.31 inches)<br>6. Dimensions: 25×8 mm (Approximately 0.31×0.98 inches, Outer diameter × Thickness)<br>7. Color: Black<br>8. Material: Steel<br>9. Package contents:<br> - 1 knurling tool<br> - 6 knurling wheels<br>10. Only the above - mentioned package contents are included, and other items are not included.<br>11. Note: Light and different displays may cause the color of the item to vary slightly from the actual product. The allowable measurement error is approximately ±1 - 3 cm.