Putty knife
From Wikipedia, the free encyclopedia
A putty knife is a spatula used for scraping surfaces, or spreading material such as plaster in various construction trades. Widths from 1 1/4" to 5" or 6" are commonly available. Stiff-blade knives, typically 1 mm or .040" thick, are suitable for scraping. Flexible-blade knives, typically 0,5 mm or .020" thick, are suitable for spreading. Disposable knives, with handle and blade molded as a single piece of plastic, are suitable for occasional jobs such as spreading roof patching tar, where cleanup may involve hazardous solvents.