4" x .040 x 5/8" Cutting Disc T1 - 25 Pack


Pack Size:
25 Discs

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Product Description

4" x 5/8" arbor Cut-off Wheels by Black Hawk


Black Hawk 4" Inch Cut Off Wheels are designed super thin (.04” thickness) and super strong for the fastest cuts and least material removed, without sacrificing safety. Black Hawk Cutoff Wheels use premium Aluminum Oxide grain bonded and reinforced with fiberglass for strength and safety while cutting.  These cut-off wheels slice right through carbon steel, stainless steel, aluminum or other various metals. This 4" inch cut off disc provides precision, speed and durability at an unbeatable price.

 Product Features:

  • Ultra-thin
  • Fiber Glass Reinforced
  • Great Value 


Works well on the following Materials:

  • Stainless Steel
  • Steel
  • Aluminum
  • Various Others


Use on:

  • Angle Grinder



  • Type 1 - Flat Disc
  • Dimensions = 4"x.040"x5/8"
  • Max RPM = 14,600
  • Material = Premium Aluminum Oxide
  • Bond = (BF) Reinforced Resinoid
  • Harness = (T) Hard
  • Grit = 60

Reviews Write a Review

  • 4
    Seems to be better

    Posted by Unknown on Jan 9th 2018

    As with all cutting disks, it is best to consider their longevity. I really haven't used them long enough to come to a real conclusion. From my first inspection, I think that they will hold up with my use of cutting old plumbing pipe. I will come back and revise my review if I come across any difficulties or failures.

  • 5
    Eats right through the material

    Posted by Mark M in AZ on Dec 14th 2017

    These discs are better than the ones made by "the guys in yellow" or "the guys in blue" (in an effort not to name names :))
    I'm impressed with their durability and the ease by which they walk through tough steel. I was able to cut a 1/2" leaf spring from the 1970s (5160 high carbon steel) into eight 12" x 1" pieces for knife-making before replacing the disc. That's insane! The disc was about 2" in diameter by then and kept on cutting but I swapped it anyway, even tough I could have likely gotten another cut or two done. I'd have gone through several discs with the other brands long before making this many cuts. I'm very impressed and will buy more in the future.

  • 5
    4" x .040 x 5/8" Cutting Disc T1 - 25 Pack

    Posted by MD AUTO REPAIR MECHANIC on Sep 26th 2016