Specification:
Condition: 100% Brand New
Knurling Material: Steel
Wheel Material: Steel
Color: Black (Knurling) + Brown (Wheel)
Knurling Wheel Figure: Approx. 0.5mm, 1.0mm, 2.0mm
Knurling Wheel Diameter: Approx. 20mm
0.5mm Diagonal Linear Knurling Wheel:
Knurling Pitch: Approx. 0.5mm / 0.02in
Net Pulley Diameter: Approx. 26mm / 1in
Hole Diameter: Approx. 10mm / 0.39in
Knurled Wheel Thickness: Approx. 8mm / 0.31in
Size: Approx. 26*8 mm / 1*0.3 in (Diameter * Thickness)
1mm Diagonal Linear Knurling Wheel:
Knurling Pitch: Approx. 1.0mm / 0.04in
Knurled Wheel Outer Diameter: Approx. 26mm / 1in
Hole Diameter: Approx. 10mm / 0.39in
Knurled Wheel Thickness: Approx. 8mm / 0.31in
Total Size: Approx. 26*8 mm / 1*0.3 in (Outer Diameter * Thickness)
2mm Diagonal Linear Knurling Wheel:
Knurling Pitch: Approx. 2.0mm / 0.08in
Knurled Wheel Outer Diameter: Approx. 26mm / 1in
Hole Diameter: Approx. 10mm / 0.39in
Knurled Wheel Thickness: Approx. 8mm / 0.31in
Total Size: Approx. 26*8 mm / 1*0.3 in (Outer Diameter * Thickness)

Package list:
1 * Knurling
6 * Knurling Wheel

Note:

2. Please allow slight deviation for the measurement data.
3. Please allow 1cm-2cm error due to the hand measurement.