4-1/2" x .045" x 7/8" Depressed Center Cutting Disc - 25 Pack


Pack Size:
25 Discs
Angle Grinder
Arbor Size:
Depressed Center

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Product Description

4-1/2" Depressed Center Cut Off Wheels by Black Hawk


4.5” x .045” x 7/8” Depressed Center Cut-Off Wheels by Black Hawk Abrasives are Black Hawk’s most popular 4-1/2 inch cutoff disc but now in recessed center form for flush cutting.  The 4-1/2” x 3/64” x 7/8” Type 27 cutoff wheel features premium heat-treated aluminum oxide grains, a double dose of high tensile strength fiberglass mesh reinforcement, and a T27 sunken center. The high-quality construction of these depressed center 4.5” cutting discs creates a versatile abrasive that is fast cutting, extremely long lasting and provides increased rigidity when compared to Type 1 flat cut off wheels. When using these 4 ½” cutting wheels you will notice a smoother cut with less flexibility and reduced downtime for changing discs. These 4.5 inch cutting wheels are ideal for slicing through sheet metal, structural steel, thin rebar, iron pipes, bar stock and can be used on stainless steel, steel, and cast iron. Black Hawk 4-1/2” x .045” x 7/8” cut-off wheels with depressed centers are made for 4.5” angle grinders with T27 compatible guards.

 Product Features:

  • Ultra-thin
  • Fiber Glass Reinforced
  • Quick, Clean Cuts
  • Great Value
  • Depressed Center 

Works well on the following Materials:

  • Stainless Steel
  • Steel
  • Cast Iron
  • Aluminum
  • Various Others

Use on:

  • Angle Grinder


  • Type 27 - Depressed Center
  • Dimensions = 4.5" x .045" x 7/8"
  • Max RPM = 13,300
  • Material = Premium Aluminum Oxide
  • Bond = (BF) Reinforced Resinoid
  • Harness = (T) Hard
  • Grit = 60

Reviews Write a Review

  • 5
    Cutting disc

    Posted by First mate smee on Oct 23rd 2020

    I’ve been using these for years, can’t complain.

  • 5
    Cutting discs

    Posted by Jay on May 18th 2020

    They out performed the other brands I had been using. Lasted way longer. I will buy again and recommend to buy

  • 5
    4 1/2" cut off wheel

    Posted by RMD Recycling on Dec 23rd 2019

    I have been using these wheels for over a year. The quality is as good or better then what I was buying at the big box stores for a third of the price. We use them to cut steal, aluminum and stainless they hold up great. They save my company a lot of money.

  • 5

    Posted by Unknown on Sep 12th 2019


  • 5

    Posted by Unknown on Jul 30th 2019

    Fast delivery, works perfect, will re-order.

  • 5
    still workin

    Posted by Unknown on Apr 28th 2018

    2 months later still cutting and going strong. As always great price and fast shipping. Thanks

  • 5
    cut off disc review

    Posted by Smee on Feb 26th 2018

    These always work good for me and you can't beat the price. Fast shipping

  • 5
    Excellent longevity

    Posted by Matthew on Apr 20th 2017

    These are pretty tough and long lasting. Not sure you could beat the quality for the price. I am extremely tough on my abrasive products and these have not let me down.