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3M™ Cubitron™ 3 Fibre Disc 1187C

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3M™ CUBITRON™ 3 Fibre Disc 1187C


3M™ Cubitron™ 3 Fibre Disc 1187C offers significant gains in productivity on medium to heavy-duty operations thanks to the exceptionally high-performing 3M new Precision-Shaped Grain combined with a stiff fibre backing. This disc achieves a higher cut-rate, greater durability, and longer life than other fibre discs — all with less grinding pressure.

This fibre disc features re-engineered 3M Precision Shaped Grain — taking the legendary speed and life of 3M™ Cubitron™ Performance Abrasives to a whole new level. These product benefits include allowing for increased productivity and lower overall grinding costs vs. other fibre discs and depressed centre grinding wheels when grinding a variety of metals, including stainless steel and other heat sensitive alloys. Delivering up to 56% more total material removed compared to the 3M™ Cubitron™ II Fibre Disc 987C, 36+, this long-lasting fibre disc has a fast cut rate with high stock removal across a wide range of application pressures; it also features a grinding aid that minimizes temperatures for heat-sensitive alloys. Additionally, this disc is designed to help reduce exposure to hand-arm vibration, increase throughput, and complete more parts-per-disc when tackling medium to high-pressure grinding applications.




Re-engineered 3M precision-shaped grain

  • Uses Re-Engineered Precision Shaped Grain, a proprietary technology designed with sharp, angular structures that continuously fracture to form sharp points to wear evenly, run cool, and optimize mineral breakdown


A whole new cut level

  • Delivers up to 53% faster initial cut rate and up to 43% faster sustained cut rate compared to the 3M™ Cubitron™ II Fibre Disc 987C, 36+


Built tough

  • A stiff fibre backing and strong resin bond provide durability and tear resistance for heavy grinding applications, such as medium to high-pressure grinding, weld removal, and bevelling — including robotic operations


Cool cutting

  • Features a grinding aid and requires less pressure to use, enabling predictable wear while helping to reduce metal discoloration and the risk of stress cracks on heat-sensitive alloys, such as stainless steel, and non-ferrous metals



  • Maintains super-sharp points that cut exceptionally fast along the entire life of the fibre disc across a range of application pressures


Stay productive

  • Designed to deliver more parts completed per disc while cutting down on abrasive waste, reducing changeouts or downtime


Ideal for heavy grinding applications on stainless steel:

  • Bevelling
  • Surface grinding
  • Flame cut smoothing
  • Weld grinding



  • Metal fabrication
  • Machinery manufacturing
  • Shipyards




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Additional information


115MM X 22MM, 36+, 125MM X 22MM, 36+