323 Series Digimatic Disc Micrometers

Measures the root tangent length of spur and helical gears.
Measurable gear pitch: 0.5 - 6 module.
Measuring force: 3 - 8 N
Disc diameter: 20mm/0.787".
Accuracy: ±4 µm/0.0002"
Instrument error: 0 - 50mm: 4μm. 50 - 100mm: 6μm.
Parallelism: 4 µm/0.00016" for models up to 50 mm/2" (4+L/50) µm for models up to 100 mm L = max. range (mm) 0.00024" for models up to 4"
Flatness: 1µm.
L = maximum measuring length.