Abstract: A simple, economical, chalk line hook device is disclosed for marking straight lines, or lines at an angle, comprising a single unit having a front and back side, a top and bottom side wherein the top side has a gripping region which includes at least one, preferably two, gripping fangs for helping to secure the hook device to a straight edge or a corner of a surface to be marked. The hook device can be used by a single individual for marking surfaces of interest and the string can be pulled in multiple angles to provide clearly visible and precision lines for further use by contractors. The hook device is uniquely designed to contain a non-pointed notched region within the top gripping portion of the device, so that the chalk line is wrapped over the front side of the hook device, over the notch, and pulled downward against the back side of the hook device toward the lower hole of the hook device.

Abstract: A simple, economical, chalk line hook device is disclosed for marking straight lines, or lines at an angle, comprising a single unit having a front and back side, a top and bottom side wherein the top side has a gripping region which includes at least one, preferably two, gripping fangs for helping to secure the hook device to a straight edge or a corner of a surface to be marked. The hook device can be used by a single individual for marking surfaces of interest and the string can be pulled in multiple angles to provide clearly visible and precision lines for further use by contractors. The hook device is uniquely designed to contain a non-pointed notched region within the top gripping portion of the device, so that the chalk line is wrapped over the front side of the hook device, over the notch, and pulled downward against the back side of the hook device toward the lower hole of the hook device.