fits AMF Marker Slimline No. 1580MSL.
Centric marking needles:
550483: radius 0.3 mm, eccentricity 0.0 mm, minimum character size: legible from approx. 1.2 mm
550482: radius 0.5 mm, eccentricity 0.0 mm, minimum character size: legible from approx. 2 mm