Weiler 50165 4-1/2" Abrasive Flap Disc Phenolic Backing 5/8"-11 Nut

The Weiler 50165 is a 4-1/2 inch abrasive flap disc engineered for demanding metalworking applications including grinding, blending, weld cleaning, and surface finishing. Built with a durable phenolic backing and fitted with a 5/8"-11 threaded nut, this disc is designed for fast, secure mounting on standard right-angle grinders.

Key Features:

• 4-1/2" diameter for use with standard angle grinders
• Phenolic backing provides firm support and prevents scratching of the workpiece
• 5/8"-11 UNC threaded nut allows for quick spin-on, spin-off changeover and eliminates cross-threading or sticking to the spindle due to heat build-up
• Zirconia alumina abrasive grain delivers self-sharpening performance that holds up under high temperatures and extreme pressure
• Contaminant-free construction — contains less than 0.1% Fe, S, and Cl — safe for use on stainless steel and carbon steel
• Engineered poly/cotton cloth improves grain retention for extended disc life

Weiler flap discs are the preferred choice for professionals in metal fabrication, welding, and surface conditioning. The 50165 is ideal for edge beveling, chamfering, weld grinding, blending, and deburring on carbon steel, structural steel, stainless steel, and cast iron.