Putty knives are generally smaller, stiffer and better suited to heavy scraping while drywall taping knives are generally wider, more flexible and better suited to spreading and feathering and to more delicate scraping work. This Warner High Carbon Steel Stiff Putty Knife has a 1.5 in. Wide stiff, taper ground, mirror polished chisel blade. This easy to use tool has a comfortable soft grip handle with a die cast hammer end.