9548844

Clear aperture: >90%
Protective chamfers: <0.25 mm x 45°
Material: N-SK11
Diameter, mm: 25.4 mm (+0/-0.2)
Surface Quality: 60-40 scratch & dig
Apex angle: 90°
Apex angle Tolerance: ±0.5°.
Edge thickness, mm: 3.5 mm