DuraMark Chalkshot Green Pen is a high-visibility, non-permanent marking solution designed for a variety of drilling applications. for marking blind holes when affixing brackets, handles, and other items on hard-to-mark surfaces, this innovative chalk pen shoots chalk directly onto the surface without the need for a traditional pen nib or tip, eliminating the risk of damage, clogging, or drying out. It performs reliably even on greasy, dirty, and rust-covered surfaces, and marks can be easily wiped off if needed. With one Chalkshot unit capable of marking over 250 locations without drying out, it both convenience and durability for professionals. Model Number: 76700