Features:Two rollers twill direction: one is positive and the other one is negative.Comes with fine, medium,and coarse diamond knurls.The mechanical process metal knob or other work at the appearance of rolling pattern for anti-slip.Rigidity, wear resistance, anti-demolition damage strength.Anti-rust, high processing efficiency.High strength and hardness.Durable in use.Used for processing pattern on the surface of workpieceIdeal for replacing your damaged Linear Knurl wheel.Specification:Material: SteelColor: Black (Knurling) + Brown (Wheel)Knurling wheel figure: approx. 0.5mm, 1.0mm, 2.0mmKnurling wheel diameter: approx. 20mm0.5mm Diagonal Linear Knurling WheelKnurling pitch:0.5mmNet pulley diameter: approx.26mmHole diameter:approx.10mmKnurled wheel thickness: approx.8mm1mm Diagonal Linear Knurling WheelKnurling pitch: 1.0mmKnurled wheel outer diameter: approx.26mmHole diameter: approx.10mmKnurled wheel thickness: approx.8mm2mm Diagonal Linear Knurling WheelKnurling pitch: 2.0mmKnurled wheel outer diameter: approx. 26mmHole diameter: approx. 10mmKnurled wheel thickness: approx. 8mmTotal size: 25*8mm/1*0.3in (Outer Diameter * Thickness)Weight: Approx.545g/19.2ozPackage list:1 x Knurling6 x Knurling Wheel.