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 resistant, high processing efficiency. High strength and hardness.

Knurling wheel figure: approx 0.5mm, 1.0mm, 2.0mm
Knurling wheel diameter: approx 20mm/0.79 inch
0.5mm Diagonal Linear Knurling Wheel:
Knurling pitch: 0.5mm
Net pulley diameter: approx 26mm/1.02 inch
Hole diameter: approx. 10mm/0.39 inch
Hanawa thickness: approx. 8mm/0.31 inch
1mm Diagonal Linear Knurling Wheel:
Knurling pitch: 1.0mm
Knurled wheel outer diameter: approx 26mm/1.02 inch
Hole diameter: approx 10mm/0.39 inch
Knurled wheel thickness: approx 8mm/0.31 inch
2mm Diagonal Linear Knurling Wheel:
Knurling pitch: 2.0mm
Knurled wheel outer diameter: approx 26mm/1.02 inch
Hole diameter: approx 10mm/0.39 inch
Knurled wheel thickness: approx 8mm/0.31 inch
Total size: 25x8mm/0.98x0.31 inch (Outer Diameter x Thickness)
Material:steel
colour:black

Package Contents:
1 * handle
6 * wheel