The MILWAUKEE INKZALL 2-in-1 Deep Reach Ultra Fine Point Black Jobsite Marker features an adjustable length tip for better access and extended durability. Designed to withstand writing on rough surfaces, it performs reliably on concrete, OSB, and other challenging materials. This marker writes through dusty, wet, and oily conditions, making it i for tough jobsite environments. It includes a 1.2" deep reach tip that is built to resharpen, ensuring long-lasting use. For convenience, it also comes with a hard hat/helmet clip for easy storage and quick access. MILWAUKEE INKZALL markers exemplify -in-class durability and innovative design for professional use.