- 3M’s Cubitron II Roloc Fibre Discs 786C is built for grinding, weld blending, deburring and other tough metal finishing jobs. 3M Precision Shaped Grain – a tough, hard, sharp ceramic abrasive – is resin-bonded to a stiff fiber backing. This disc lasts significantly longer than conventional ceramic grain discs, delivering a lower cost per grind with fewer disc changes.
- Features:
- Cubitron II cuts 30% faster and lasts 2x longer than conventional ceramic abrasives
- Precision Shaped Grain (PSG) technology employs microreplication for extremely uniform abrasive
- Triangular PSG abrasive grains are super-sharp and cut exceptionally fast
- Grains are electrostatically oriented on abrasive surface for efficient cut, even wear
- PSG self-fractures during use to maintain sharpness and prolong abrasive life
- Stiff fiber backing and a strong resin bond lend this disc long life and tear-resistance
- Significantly longer lasting, complete more parts per disc and requires fewer disc changes
- Includes:
- Specifications:
- Part No.: 33379
- Product Line: MMM
- MFR Model: 33379
- Applications: For door hem flanges, grinding, light grinding, paint stripping, right angle grinding, strip paint to metal, weld grinding
- Manufacturer: 3M Products
- Alternate Part Number-1: 60455082085
- UPC: 051131333796
- Brand: Cubitron II
- Part Status: A
- Grit: 60+
- Disc Diameter (in): 2
- Abrasive Material: Precision Shaped Ceramic
- Maximum Speed (rpm): 25000
- Series: 786C
- Color: Purple
- Backing Material: Fiber
- Attachment Type: Roloc TR
- Part Number 33379, 3M Product Number 786C, 3M ID 60455082085, UPC 051131333796
- 3M Cubitron II 33379 786C Series Fiber Discs are also often referred to as 2 inch sanding discs, Metal grinding discs, High-performance sanding discs, Durable sanding discs, Fast cutting sanding discs, and 3M sanding discs.
3M is a global leader in abrasive technology and surface preparation solutions, offering innovative products that deliver precision, durability, and productivity. With the Cubitron II line, 3M combines advanced ceramic materials with cutting-edge engineering to serve the demanding needs of automotive, aerospace, and industrial professionals.
Q: What is the main use of the 3M 786C 2-inch fiber disc?
A: It is primarily used for spot weld removal, grinding in tight spaces, and general surface prep on metal substrates.
Q: What tools are compatible with these fiber discs?
A: These discs are compatible with 2-inch Roloc disc pads and right-angle grinders rated up to 25,000 RPM.
Q: How does the precision-shaped grain benefit the user?
A: It cuts more efficiently with less heat, reducing work time while extending the disc's usable life.
Q: Can these discs be used on aluminum or just steel?
A: While optimized for steel, they are effective on a range of metals, though care should be taken to avoid cross-contamination with aluminum.
Q: Are these discs suitable for wet grinding?
A: No, these fiber discs are designed for dry applications and high-speed grinding in controlled environments.
