The SHOPRO 4" UltraFlex Putty Knife combines professional-grade materials with precision engineering. Its stainless steel blade resists corrosion, ensuring durability across demanding applications. The blade's unique flex design delivers smooth, controlled spreading for flawless finishes on drywall, spackling, and paint prep work. The solvent-resistant ABS handle provides a secure grip while withstanding exposure to chemicals and solvents common in construction and finishing tasks. Built for contractors and DIY enthusiasts who demand reliability.