4-1/2" Zirc Flap Disc T27 - 10 Pack

Brand: BHA - Black Hawk Abrasives

Pack Size:
10 Discs
Angle Grinder

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Product Description

4-1/2" x 7/8" Black Hawk Zirconia Flap Discs Type 27 - 10 Pack

Available Grits: 40, 60, 80, 120


Are you looking for a way to speed up your jobs without sacraficing quality? Black Hawk Flap Discs both grind and finish in one step without breaking to change abrasives or tools.

Black Hawk Zirconia Flap Discs consist of sanding strips adhered to a strong fiberglass backing plate in an overlapping circular pattern. Each sanding strip is made using premium Zirconia grain and European cloth. These discs are built for precision, durability and ease of use. Flap Discs are an essential tool for right angle metal grinding applications, and can be used in place of both grinding wheels and resin fiber discs. Zirconia is a long-life premium abrasive that works well on stainless steel, hard steel, titanium and various others. A Zirconia Flap Disc continually produces new sharp points, creating faster cutting and a longer lifespan than aluminum oxide varieties.

Product Features:

  • Normally operated at a 0° to 15° angle
  • Grind more smoothly than angle discs
  • Less aggressive than angle discs
  • Best choice for flat surface work
  • For use with an Angle Grinder
  • Contaminant Free: Less than 0.1% Iron, Sulfur and Chlorine - will NOT cause after-rust


Works well on the following materials:

  • Stainless Steel
  • Hard Steel
  • Titanium
  • Various Others



  • Type 27 - Flat Flaps (The Type 27 Flap Disc is flat in shape which works well for finishing or blending applications.)
  • Diameter = 4.5”
  • Arbor = 7/8”
  • Max RPM = 13300
  • Material = Premium Zirconia Grain
  • Grit = 40, 60, 80 & 120 Grits available

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