Norton 66623399139 Bluefire 4-1/2" Flap Disc 80 Grit Type 29

The Norton Bluefire flap disc delivers aggressive stock removal and long life on metal fabrication and welding applications. This 4-1/2 inch flap disc features premium zirconia alumina abrasive grain that stays sharp longer for faster cutting action and extended disc life.

Key Features:

• 4-1/2 inch diameter with 5/8-11 threaded arbor for quick attachment to angle grinders
• 80 grit provides medium-coarse finish for grinding, blending, and surface preparation
• Type 29 conical design for aggressive material removal at optimal grinding angles
• Zirconia alumina grain delivers superior performance on steel, stainless steel, and ferrous metals
• Self-sharpening flaps continuously expose fresh abrasive for consistent cut rate
• Maximum RPM: 13,300

Ideal for weld grinding, deburring, rust removal, and surface preparation on metal workpieces. The flexible flap construction conforms to contours while maintaining aggressive cutting action throughout the life of the disc.