4-1/2" Zirc Flap Disc T29 - 10 Pack


Pack Size:
10 Discs
Angle Grinder

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Product Description

4-1/2" x 7/8" Black Hawk Zirconia Flap Discs Type 29 - 10 Pack

Available Grits: 40, 60, 80, 120


If grinding and finishing are a two tool process for you, you are simply working in the past. Black Hawk Zirconia Flap Discs turn stock removal and finishing into a single, quick and easy process that is bound to save you time and money.

Black Hawk Zirconia Flap Discs are manufactured using premium Zirconia grain, European cloth and fiberglass backing. 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 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:

  • Provides maximum contact with work surface
  • More aggressive than flat flap discs (Type 27)
  • Works well on curves and contours
  • Normally operated at a 15° to 25° angle
  • Use on a Right 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 29 - Conical (The Type 29 Flap Disc is angled in shape which works well for more aggressive grinding.)
  • Diameter = 4.5”
  • Arbor = 7/8”
  • Max RPM = 13300
  • Material = Premium Zirconia Grain
  • Grit = 40, 60, 80 & 120 Grits available

Reviews Write a Review

  • 5
    The best

    Posted by Jobco stairs and rails on Aug 14th 2020

    These are some of the longest lasting fastest a cutting disc that I have used in my 37 years, very fine finish

  • 4
    Flap disks

    Posted by Unknown on May 31st 2020

    Great for the price. I keep them stocked up but they last well used correctly.

  • 5

    Posted by FLOYD on May 21st 2020


  • 4
    Black Hawk flap disc

    Posted by High Crest 2 on May 3rd 2020

    I use a lot of 4.5 resin disc. Thought I would try these. I am pleased. They appear to last and the heat transfer on sheet metal work appears to be considerably less concentrated.

  • 5
    4-1/2 zinc flap disc T29

    Posted by Steve Egyed on Dec 11th 2019

    I have used these disc types in the past made by other manufacturers and liked how they performed, but they never seem to last very long. The Black Hawk brand from Empire on the other hand, keeps on going and going! I am completely amazed how long they last

  • 4
    Flap disk

    Posted by Matthew Conley on Dec 8th 2019

    Used to remove concrete from a float. Worked pretty well. Have not used on steel but expect it to hold up and do a good job

  • 5

    Posted by Unknown on Sep 24th 2019

    Best performance to price disc that I have used.

  • 5

    Posted by Dos Pistolas Metalworks on Jul 17th 2019

    The best flap discs on the market....period. Speedy shipping as well.

  • 4
    Works good

    Posted by Unknown on Jun 27th 2019

    Used these grinding concrete that had set up on a bull float and worked great.