from The Century Dictionary and Cyclopedia
- n. A small paint-brush of a size used in painting window-sashes.
- n. A cutter used in forming the moldings in window-sashes.
- n. Any tool or plane-iron used in the making of sashes.
Sorry, no etymologies found.
With a painter's brush of the size called a sash-tool, put the mixture on the cracks or places where the roaches hide; they will come out at once.