4" x 5/8" BHA Zirconia Flap Disc

Brand: BHA - Black Hawk Abrasives

Pack Size:
1 Disc
Angle Grinder

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Product Description

4" Zirconia Flap Disc with ⅝” Arbor

Professional-Grade Zirconia Flap Disc for Metal Grinding, Weld Blending, Deburring, and More with 4” Angle Grinders.

Experience the versatility of the BHA 4" x 5/8" Zirconia Flap Disc, the must-have tool for those looking to elevate their grinding and sanding skills. Our flap discs are designed to self-renew; as each abrasive flap wears down, it reveals a fresh layer beneath. With its self-sharpening Zirconia grain, the disc continually renews its abrasive surface as well. The disc's unique design is crafted to maximize contact with your project’s surface, making it especially effective at heavy stock removal and grinding flat, curved, and contoured surfaces.

Choose from our different grit options for your specific task: 40 for aggressive material removal, 60 and 80 for general-purpose sanding, and 120 for a refined finish. This all-in-one disc will clear up space in your toolbox, capable of handling tasks that would typically require several standard sanding discs. Plus, the reinforced fiberglass backing adds durability and lowers vibration, so you get a smoother finish and comfortably grind without experiencing hand fatigue. Elevate Your Grinding Game – Buy Today!


Product Features

  • Abrasive Grain: Premium Zirconia ensures fast cutting and long-lasting performance.
  • Self Renewing Flaps: The flaps are designed to self-renew, exposing fresh layers of sharp cutting zirconia abrasives as they wear down,
  • 4 Inch Design: 4-inch diameter with a 5/8" arbor hole for wide compatibility with 4 inch angle grinders
  • Reinforced Fiberglass Backing: Provides added durability and vibration absorption.
  • Resin on Resin Bonding: Provides a strong, secure bond that resists breaking or abrasive grain shedding.
  • Strip Material: High Strength X weight poly/cotton cloth for added strength.
  • Grit Variety: Available in 40, 60, 80, and 120 grits to cater to diverse sanding needs.
  • Multi-purpose: Useful for a variety of tasks, this flap disc eliminates the need for separate grinding wheels, sanding discs, and surface prep tools

What Sets Our Discs Apart?

  • Premium Zirconia Abrasive: Zirconia grain, known for is quick cutting and durability, is self-sharpening (friable), which means that it stays sharp and efficient even as it wears down. Our discs can cut through material quickly and easily, even on tough metals.
  • Versatile Applications: Ideal for metal grinding, wood sanding, rust removal, and more.
  • Long-Lasting Performance: Zirconia grain ensures consistent performance and extended lifespan and self-renewing flaps ensures consistent performance, reducing the need for frequent replacements and saving you money
  • Wide Compatibility: Designed to fit most 4” angle grinders from popular brands like Dewalt, BLACK+DECKER, Makita, Ryobi, and more
  • Choice of Grits: Choose from 40, 60, 80, and 120 grits for precise sanding needs from aggressive stock removal to finishing
  • Low Vibration: Reinforced fiberglass backing absorbs vibrations for a smoother experience. Grind longer without experiencing hand fatigue.
  • Safety: The reinforced fiberglass backing not only absorbs vibrations but also adds an extra layer of safety during operation, holding its structural integrity even during aggressive grinding.
  • Heat Resistant: The Zirconia grain and fiberglass backing provide better heat dissipation, preventing discoloration, burning, or warping your workpiece.
  • User-Friendly: Suitable for both DIY enthusiasts and trusted by professionals
  • High-Quality Material: Made with professional-grade Zirconia for durability.
  • Optimal Contact: Our design provides maximum contact with the work surface and excels on curves and contours.

Materials Suitable for Sanding/Grinding

  • Metal: Stainless Steel, Ferrous Metals (Steel, Cast Iron, Wrought Iron), Nonferrous Metals (Aluminum, Copper, Brass, Bronze), Alloys.
  • Wood: Hardwood (Oak, Maple, Cherry, Walnut), Softwood (Pine, Fir, Cedar, Redwood).
  • Others: Plastics, Fiberglass, Laminates.

Common Applications

  • Metal grinding: Deburring, weld blending, paint and rust removal, surface preparation, etc.
  • Wood sanding: Sanding, finishing, edge chamfering, etc.
  • Plastic sanding: Sanding, deburring, edge finishing, etc.
  • Coated surface sanding: Paint removal, varnish removal, epoxy removal, etc.

Product Specifications

  • Brand: BHA (Black Hawk Abrasives)
  • Diameter: 4"
  • Arbor Hole: 5/8"
  • Abrasive Grain: Zirconia
  • Bonding: Resin on resin
  • Disc Backing: Reinforced fiberglass
  • Sanding Flap Backing: High Strength X weight poly/cotton cloth
  • Available Grits: 40, 60, 80, 120
  • Max RPM: 15,300
  • Compatible Tools: 4” Angle Grinders with ⅝” arbor

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