3M™ Cubitron™ II Roloc™ Fibre Disc 786C, 33377, 2 in (50 mm), 36+, 15 Discs/Carton, 6 Cartons/Case

3M’s Cubitron™ II Roloc™ Fibre Discs 786C is an abrasive disc featuring 3M™ Precision Shaped Grain resin-bonded to a stiff fiber backing. This disc with its tough hard sharp ceramic abrasive lasts significantly longer than conventional ceramic grain discs, making it ideal for grinding, weld blending, deburring and similar tough metal finishing jobs.
Special Price $37.87 Regular Price $44.55
UPC 00051131333772
3M ID 7100033187
Packaging Carton
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Speed, Long Life, and Ease of Use

Engineered for faster cutting, sustained performance, durability and increased throughput, the 3M™ Cubitron™ II Roloc™ Fibre Discs 786C is a game changer, featuring Precision-Shaped Grain technology.

About 3M™ Cubitron™ II and Precision-Shaped Grain

3M™ Cubitron™ II abrasive discs, cutoff wheels and file belts have raised the bar for high-performing abrasives. Cubitron™ abrasives feature Precision-Shaped Grain (PSG) technology, which allows 3M engineers to control the geometry of the abrasive grain for a truly fast, efficient cut. Instead of simply crushing the abrasive into particles, 3M uses microreplication to uniformly size ceramic grains and precisely shape them into triangular structures – essentially, sharp peaks that slice, not plow, through paint and metal. These grains are electrostatically oriented on the abrasive surface for the most efficient cut and even wear. What's more, PSG fractures during use to maintain sharp abrasive edges. The result: Cubitron™ II cuts 30% faster and lasts 2x longer than conventional ceramic abrasives.

Time-Saving Quick Change Attachment

3M™Fibre Roloc™ Disc Quick Change Attachment System is convenient and saves time. Discs screw securely into the threaded mandrel without tools. Ideal for applications requiring frequent grade or disc size changes. For best results, use Fibre Roloc™ Discs with 3M™ Power Tools. 3M abrasives, accessories and power tools are optimized to work together and help you attain maximum productivity.

Recommended Applications

Choose the 3M™ Cubitron™ II Roloc™ Fibre Discs 786C for medium to heavy-duty metalworking such as weld grinding and clean-up, as well as edge chamfering, beveling, and paint removal processes.

Clean and remove coatings Deburr metal Remove gaskets Polish and shape metal Remove oxidation, paint and rust Cut spot welds Strip paint to metal

Slotted for cutting off weld and door skin removal

Tech Tip

Use 3M™ Disc Pad Face Plates – Red Ribbed – to optimize product life of Cubitron™ II Fibre Discs – grades 36+, 60+ and 80+.

A Portfolio of Abrasive Systems Solutions

From specialty abrasives designed for a highly specific purpose to versatile sheets, 3M provides an abrasive to accomplish your task or perfect your system. 3M draws from a wealth of original technologies and breakthrough inventions to provide a broad portfolio of abrasives that shape, finish and polish with ease and precision.


  • Cubitron™ II cuts faster and lasts 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
More Information
3M ID 7100033187
Part number 33377
Keywords 33377
Global Product Hierarchy Abrasives > Abrasive Discs > Fibre Grinding Discs
Abrasive Material Precision Shaped Ceramic
Application Bodywork Solution, Coarse Sanding, Grinding, Rust Removal, Spot repair of defects in paint and clearcoats
Backing Material Fibre
Backing Thickness (Metric) 0.0 NP
Backing Thickness (Imperial) 0.0 NP
Bond Type Resin
Center Hole Diameter (Imperial) 0.0 NP
Center Hole Diameter (Metric) 0.0 NP
Color Family Purple
Grit 36+
Product Color Purple
Product Number 786C
Product Type simple
Quantity 0
Trademark 1 3M™
Trademark 2 Cubitron™
Country of Origin United States
Sales Unit EA
SAP Shelf Life In Days 1825
Base - Billing Unit EA
Base - Customary Width Dimension 2.0 INCH
Base - Metric Gross Weight 9.828 G
Base - Metric Width Dimension 0.05 M
Base - Item Quantity 1
Base - Unit EA
Unit of Use - Billing Unit EA
Unit of Use - Customary Cubic Dimension 5.648784919617083 ci
Unit of Use - Customary Gross Weight 0.021667031127529768 lbs
Unit of Use - Customary Net Weight 0.01190496215798339 lbs
Unit of Use - Metric Cubic Dimension 92.567 CCM
Unit of Use - Metric Net Weight 5.4 G
Unit of Use - Item Quantity 1
Unit of Use - Total Unit Quantity 1
Unit of Use - Previous Packaging Level Quantity 1
Unit of Use - Item Unit EACH
Unit of Use - Unit EA
Consumer - Billing Unit EA
Consumer - Customary Cubic Dimension 63.348504649765204 ci
Consumer - Customary Gross Weight 0.2799870729747945 lbs
Consumer - Customary Net Weight 0.17857443236975085 lbs
Consumer - Customary Height Dimension 3.5039370078740157 in
Consumer - Customary Length Dimension 4.251968503937008 in
Consumer - Customary Width Dimension 4.251968503937008 in
Consumer - Metric Cubic Dimension 1038.096 CCM
Consumer - Metric Net Weight 81.0 G
Consumer - Metric Height Dimension 8.9 CM
Consumer - Metric Length Dimension 10.8 CM
Consumer - Metric Width Dimension 10.8 CM
Consumer - Item Quantity 15
Consumer - Total Unit Quantity 15
Consumer - Previous Packaging Level Quantity 15
Consumer - Previous Packaging Level Unit EACH
Consumer - Item Unit EACH
Consumer - Unit KAR
Shipper - Billing Unit EA
Shipper - Customary Cubic Dimension 508.3900325280965 ci
Shipper - Customary Gross Weight 1.9499887090252421 lbs
Shipper - Customary Net Weight 1.071446594218505 lbs
Shipper - Customary Height Dimension 4.21259842519685 in
Shipper - Customary Length Dimension 13.385826771653543 in
Shipper - Customary Width Dimension 9.015748031496063 in
Shipper - Metric Cubic Dimension 8331.02 CCM
Shipper - Metric Weight 884.5 G
Shipper - Metric Net Weight 486.0 G
Shipper - Metric Height Dimension 10.7 CM
Shipper - Metric Length Dimension 34.0 CM
Shipper - Metric Width Dimension 22.9 CM
Shipper - Item Quantity 90
Shipper - Total Unit Quantity 90
Shipper - Previous Packaging Level Quantity 6
Shipper - Previous Packaging Level Unit CTNS
Shipper - Item Unit EACH
Shipper - Unit CS
Pallet - Billing Unit EA
Pallet - Customary Cubic Dimension 94769.87457911923 ci
Pallet - Customary Gross Weight 343.921129008409 lbs
Pallet - Customary Net Weight 160.71698913277575 lbs
Pallet - Customary Height Dimension 46.8503937007874 in
Pallet - Customary Length Dimension 48.031496062992126 in
Pallet - Customary Width Dimension 42.125984251968504 in
Pallet - Metric Cubic Dimension 1.553 M3
Pallet - Metric Net Weight 72.9 KG
Pallet - Metric Height Dimension 1.19 M
Pallet - Metric Length Dimension 1.22 M
Pallet - Metric Width Dimension 1.07 M
Pallet - Item Quantity 13500
Pallet - Total Unit Quantity 13500
Pallet - Previous Packaging Level Quantity 150
Pallet - Previous Packaging Level Unit BOX
Pallet - Item Unit EACH
Pallet - Unit PAL
Pallet - Pallet Layer Quantity 10
Pallet - Shipping Container Per Layer Quantity 15
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