Putty Knives

Choose narrower blades (1–2 inches) for detail work and wider blades (3–6 inches) for spreading joint compound or scraping large areas; flexible stainless blades conform to surfaces for smoothing, while stiff blades provide leverage for scraping and prying

Stainless steel blades resist rust and are easy to clean, while carbon steel blades hold a sharper edge for heavy scraping; look for ergonomic, non-slip handles made from rubber or molded plastic for comfort during extended use

Yes — stiff, durable blades are best for paint and adhesive removal; flexible, wide knives are ideal for drywall finishing and applying joint compound; narrow or rounded-tip knives are commonly used for glazing and fine patching

Clean blades after each use to remove compound or adhesives, dry thoroughly to prevent corrosion, occasionally hone or file burrs on carbon steel, and store flat or hanging to avoid bending the blade

Putty knives are commonly available from budget options under $20 to more durable professional sets above $50; higher-priced tools often use thicker steel and better handles for durability, but the right choice depends on frequency and type of use

Sets are cost-effective and provide multiple widths useful for varied tasks, while buying individual knives lets you select specific blade widths, flexibilities, and higher-grade materials for frequent or specialized use

Wear eye protection when scraping to guard against chips, keep fingers away from the blade edge, use a stable scraping angle to avoid slips, and replace or repair bent or nicked blades to prevent accidents