Plaster trowel by Marshalltown Trowel Co.
The company presents the Scratcher Trowel and the Scratcher Knife. The blade of the trowel is made of high-grade spring steel and is 1/2-inch-by-15/32-inch "V" notched on three sides. It has an aluminum-alloy mounting. The knife has the same notch pattern as the trowel. Both tools come with a resilient DuraSoft handle to reduce fatigue and increase comfort while working. The tools can be used for scoring plaster to form a good bond between coats.