[Kanon] Flat Head Caliper PITA

[Features]
· 21st century standard calipers, Pita calipers.
· "Flat head" enables easy measurement from any corner.
· PITA15: The main scale grooves on the top and bottom scales reduce diffuse reflection on the surface with the scale markings.
· Because the green color is easy on the eyes, they don't get tired.