1. Material: steel 2. Color: black (knurled) + brown (wheel) 2. Knurled wheel graphics: 0.8mm / 1.0mm1.2mm / 1.5mm / 1.6mm / 1.8mm / 2.0mm 4. Knurled wheel diameter: about 20 mm 5. Twill direction of two rollers: one is positive and the other is negative 6. Equipped with fine, medium and coarse diamond knurling 7. Machined metal knob or other non-slip working on the appearance of rolling pattern 8. Rigidity, abrasion resistance, resistance to disassembly and destruction 9. Anti-rust and high processing efficiency 10. High strength and hardness, durable 11. For processing the surface pattern of the workpiece 12. Ideal for replacing damaged linear knurled wheels
