Milwaukee INKZALL™ Black Fine Point Jobsite Marker is designed to perform on the roughest surfaces you encounter on the jobsite, including OSB, cinder block, and concrete. Its clog-resistant tips ensure reliable writing, while the ink can mark through dusty, wet, or oily conditions with ease. The quick-drying ink minimizes smudges, yet it won’t dry out quickly even if the cap is left off. For added convenience, this marker features built-in hard hat clips and a lanyard hole, making it easy to keep within reach during your workday. Model Number: 48-22-3100