8-Pack Milwaukee Inkzall Point Markers, Fine, Black. The Milwaukee Inkzall Point Markers have clog resistant tips. Milwaukee Inkzall Point Markers write on dusty, wet and oily surfaces and is optimized for rough surfaces such as OSB, cinderblock and concrete. The Milwaukee Inkzall Point Markers have a hard hat clip that attaches for easy access. The Milwaukee Inkzall Point Markers have a quick dry time with reduced smearing and marking. The Milwaukee Inkzall Point Markers are fine point markers with black, permanent, non-toxic, ink.