What will remove the permanent staining chalk?
The chalk is permanent staining and we do not guarantee that anything will ... read more
How do I change the batteries?
Remove the set screws on the top of the unit using the small hex key. Chang... read more
I am working during the rainy season, and my chalk lines wash away if I don't spray them with polyurethane. Is there any type of chalk that will withstand bad weather, and eliminate this step?
IRWIN makes permanent chalk in either black or red. Because it won't rub, f... read more