The diagonal direction of the two rollers of the Steel Knurling Tool, one is positive and the other is negative. Machined metal knobs or other products that play an anti-slip effect when rolling patterns appear Anti-rust Knurling Tool has rigidity, wear resistance, resistance to disassembly and destruction, and is used to process the surface pattern of the workpiece Dual Wheel Linear Knurl Set has fine and coarse diamond knurling, which is very suitable for replacing damaged knurled tools Replaceable Knurling Tool has rigidity, wear resistance, resistance to disassembly and destruction, and is used to process the surface pattern of the workpiece Knurling Tool is made of steel, strong and wear-resistant, resistant to corrosion and corrosion, and can be used for a long time Knurling Tool is made of steel and comes with fine, medium and rough diamond knurling, which can play a non-slip effect when rolling patterns. It is very suitable for replacing damaged knurling tools for processing the surface pattern of the workpiece. Features Knurling tool -Color: Black,brown. -Material: Steel. -Size: Total size: 2.5x0.8 cm/0.98x0.31 inch(Outer Diameter x Thickness). Knurling wheel figure: approx. 0.5mm, 1.0mm, 2.0mm. Knurling wheel diameter: approx. 20mm. 0.5Mm Diagonal Linear Knurling Wheel: Knurling pitch: 0.5mm. Net pulley diameter: approx. 26mm. Hole diameter: approx. 10mm. Hanawa thickness: approx. 8mm. 1Mm Diagonal Linear Knurling Wheel: Knurling pitch: 1.0mm. Knurled wheel outer diameter: approx. 26mm. Hole diameter: approx. 10mm. Knurled wheel thickness: approx. 8mm. 2Mm Diagonal Linear Knurling Wheel: Knurling pitch: 2.0mm. Knurled wheel outer diameter: approx. 26mm. Hole diameter: approx. 10mm. Knurled wheel thickness: approx. 8mm. Package Including 1 * Knurling 6 * Knurling wheel