Description

3M™ Cubitron™ II Roloc™ Fibre Disc 786C, 2 in (50 mm), 36+ Grit (33377)

Name: 3M Cubitron II Roloc Fibre Disc 786C, 50 mm, 36+, 33377
SKU: 101-93
Availability: InStock

Part Number: 33377 | UPC: 00051131333772 | Brand: 3M™ Cubitron™ II

When you need to remove material quickly without burning through discs, the 3M Cubitron II Roloc Fibre Disc 786C (33377) delivers. Built for heavy-duty metalworking, this 2-inch, 36+ grit fibre disc is engineered to cut faster, run cooler, and last significantly longer than conventional ceramic abrasives. Whether you are grinding welds, stripping paint to bare metal, or chamfering edges, this disc helps you get the job done with fewer changeouts and less operator fatigue.

The Power of Precision-Shaped Grain

What sets the 3M 33377 apart is 3M’s proprietary Precision-Shaped Grain (PSG) technology. Instead of crushing abrasive minerals into random, blocky shapes that plow through metal and generate excess heat, 3M microreplicates ceramic grains into uniform triangular structures. These sharp peaks act like individual cutting tools that slice cleanly through paint, rust, and metal.

As you grind, the triangular grains continuously self-fracture to expose fresh, sharp edges. This means the disc maintains a consistent, aggressive cut rate from the first spark to the end of its life. In fact, Cubitron II abrasives are proven to cut up to 30% faster and last twice as long as traditional ceramic discs.

Built Tough for Demanding Applications

The 786C series features a stiff, tear-resistant vulcanized fibre backing combined with a strong resin bond. This robust construction ensures the disc holds up under high-pressure grinding applications without shedding grain prematurely. It is the ideal choice for tough jobs in automotive collision repair, custom fabrication, and industrial metalworking.

Top Applications Include:
* Grinding and blending spot welds
* Stripping paint, rust, and oxidation down to bare metal
* Removing tough gaskets and coatings
* Edge chamfering and beveling
* Deburring and shaping metal surfaces

Quick-Change Convenience

Time spent changing discs is time you aren’t grinding. The integrated Roloc™ TR (Type III) attachment system allows you to swap out discs in seconds. A simple twist securely locks the disc into the threaded mandrel of your backup pad—no tools required. This is especially valuable when your project requires frequent transitions between different grits or disc sizes.

For optimal performance and maximum disc life, pair the 33377 with a ribbed 3M Disc Pad Face Plate (Red) and a compatible right-angle grinder or pistol grip disc sander.

Product Specifications

Specification	Detail
Overall Diameter	2 inches (50 mm)
Grit	36+
Abrasive Material	Precision Shaped Ceramic
Backing Material	Stiff Fibre
Attachment Type	Roloc™ TR (Plastic Button)
Bond Type	Resin
Maximum Speed	30,000 RPM
Use	Dry Sanding / Grinding
Color	Purple

Note: For industrial and occupational use only. Not intended for consumer sale or use.

Improve your grinding process today. Add the 3M Cubitron II Roloc Fibre Disc 786C to your cart and experience the difference that precision-shaped ceramic grain makes in your shop.

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3M Cubitron II Roloc Fibre Disc 786C, 50 mm, 36+, 33377

Description