Warner 5-in-1 Glazier Knife

The Warner 5-in-1 Glazier Knife is the ultimate multi-tool for window installers, renovators and DIY enthusiasts. Engineered for clean, precise removal and application of glazing compound, sealants and mastic, this all-in-one knife streamlines every phase of window and glass work. Featuring an ergonomic soft-grip handle, it delivers exceptional control and comfort, even during extended use in tight sash areas.

Built around a high-carbon steel blade, the 5-in-1 Glazier Knife offers long-lasting sharpness and rust resistance. Swap between five dedicated blade profiles in seconds—no extra tools required—and tackle glazing, scraping, sealant smoothing and paint removal with professional-grade results every time.

Key Features

• Five interchangeable blade profiles for glazing, scraping, sealant finishing, mastic removal and paint chip cleaning
• Precision-ground high-carbon steel blade for lasting sharpness and rust resistance
• Ergonomic soft-grip handle reduces hand fatigue and ensures a secure hold
• Compact, lightweight design fits comfortably in one hand for detailed sash work
• Durable construction built to withstand job-site demands