Cubitron Abrasivesfor Collision Repair

3M abrasive tools and purple sanding discs displayed on black background

Experience the new era of abrasive performance

Innovative 3M™ Cubitron™ 3 Abrasives for the body shop join the premium 3M™ Cubitron™ II Abrasives for general coarse and fine sanding tasks.

Repair faster with 3M™ Cubitron™ Abrasives

Whether using 3M™ Cubitron™ II or our latest 3M™ Cubitron™ 3 Abrasives, you get consistent performance built on precision-shaped grain innovation.

Faster material removal
Longer abrasive life with fewer changeouts
Re-engineered precision-shaped grain for cutting and grinding abrasives

Choose the right abrasive for your body repair and surface prep jobs

Every collision repair operation requires different abrasives depending on the repair step. Explore solutions designed for the most common body shop tasks.

Remove spot welds
3M™ Precision-Shaped Abrasives are designed for tight spaces, edges, and spot weld removal.

Suitable for:

Opening welding points

Grind out rivets and spot welds

Edge grinding

3M™ Cubitron™ 3 Abrasive File Belts
Cut metal and panels
High cut-rate abrasives designed for fast metal removal with long life.

Suitable for:

Cutting body panels

Removing rusted bolts

Cutting exhaust components

3M™ Cubitron™ 3 Cut-Off Wheels
Grind and blend welds
Engineered for smooth grinding, weld lending, and deburring.

Suitable for:

Weld seam and grinding

Deburring

Paint stripping to bare metal

For small tasks: 3M™ Cubitron™ 3 Roloc™ Abrasive Fibre Discs

For large tasks: 3M™ Cubitron™ 3 Abrasive Fibre Discs
Sand for body repair and surface prep
Prepare panels for refinishing with fast, consistent sanding.

Suitable for:

Paint removal

Body filler shaping

Feather edging

Surface prep before primer

Blending

3M™ Cubitron™ II Hookit™ Clean Sanding Abrasive Disc 737U

3M™ Cubitron™ II Hookit™ Clean Sanding Sheet Roll 737U

The science behind 3M™ Precision-Shaped Grain

Our latest 3M Precision-Shaped Grain

Transforming the industry, our cutting-edge 3M Precision-Shaped Grain, with proprietary breakthroughs in grain shape and molecular bonding, helps increase productivity, safety and sustainability.
Original 3M Precision-Shaped Grain

3M pioneered the first precision-shaped grain using 3M microreplication technology to form consistent sharp peaks that easily “slice” through metal—cutting cooler, faster, and lasting longer than conventional abrasive grain.
Conventional Ceramic Abrasive

Conventional ceramic abrasive grain tends to “plow” through metal, causing heat to build up in the workpiece and abrasive, resulting in a slower cut and shorter abrasive life compared to our latest precision-shaped grain.

Explore 3M™ Cubitron™ Abrasives with cutting-edge, precision-shaped grain technology

3M™ Cubitron™ 3 Abrasive File Belt

Removes up to 1.5x more material and delivers a 1.8x higher sustained cut rate than 3M™ Cubitron™ II File Belts*

Available in 40+, 60+, 80+

3M™ Cubitron™ 3 Abrasive File Belts

*Based upon 3M internal automated testing against 3M™ Cubitron™ II Abrasives in 2025
3M™ Cubitron™ 3 Abrasive Fibre Discs

Designed for fast grinding and weld blending with cooler cutting performance. Improved to deliver up to 1.4x higher sustained cut rate and up to 1.2x more materials removal.

Available in 36+, 60+, 80+ and Roloc™ attachments

3M™ Cubitron™ 3 Roloc™ Abrasive Fibre Discs

3M™ Cubitron™ 3 Abrasive Fibre Discs

*Based upon 3M internal automated testing against 3M™ Cubitron™ Abrasives II in 2025
3M™ Cubitron™ 3 Abrasive Cut-Off Wheel

High-performance cutting wheels designed for sheet metal, aluminum, and high-strength steel. Improved to deliver up to a 1.4x higher sustained cut rate.

3M™ Cubitron™ 3 Cut-Off Wheels 

*Based upon 3M internal automated testing against Cubitron™ II in 2024
3M™ Cubitron™ II Hookit™ Clean Sanding Abrasive 737U

Well established 3M™ Cubitron™ II Abrasive Discs and Sheet Rolls are designed to be 30% faster and last 30% longer than conventional and conventional ceramic abrasives.

Available in 40+ to 1,000+

3M™ Cubitron™ II Hookit™ Clean Sanding Abrasive Disc 737U

3M™ Cubitron™ II Hookit™ Clean Sanding Sheet Roll 737U

*Based upon 3M™ internal automated testing against 3M™ Hookit™ Blue Abrasive 321U in 2024

Build a complete 3M repair system

Tools for body repair

For best performance of 3M™ Cubitron™ 3 Cutting and Grinding Abrasives, use with 3M™ Power Tools:

Cut-off wheel tool

File belt sander

Pneumatic grinder

Pistol grip sander
Tools for surface preparation

Optimize your 3M™ Cubitron™ II 737U Abrasive Disc and Sheet Performance by pairing them with the 3M™ Clean Sanding System:

Pneumatic precision sander

Pneumatic sheet sander

Electric sander

Dust extractor

FAQs related to 3M™ Cubitron™ Abrasives

How do 3M™ Cubitron™ 3 Abrasives improve efficiency compared to 3M™ Cubitron™ II and conventional abrasives?
In the body shop, 3M™ Cubitron™ 3 Cutting and Grinding Abrasives deliver higher sustained cut rates and increased material removal, reducing disc changeouts and helping technicians complete repair steps faster. For paint preparations tasks, 3M™ Cubitron™ II Abrasives improve productivity, cutting up to 30% faster and lasting longer than conventional ceramic alternatives. (Based upon 3M internal automated testing against 3M™ Hookit™ Blue Abrasive 321U in 2024.)

Explore the hidden impact of abrasives on collision repair safety and performance in this article from 3M Application Engineer, Ryan Marrinan (PDF, 285 KB).

Download this infographic for your shop PDF, 1.7 MB)—A quick reference about how the right abrasive selection can help eliminate imperfections.
What makes 3M™ Cubitron™ 3 Precision-Shaped Grain technology different?
3M™ Cubitron™ 3 Abrasives use a re‑engineered precision-shaped grain designed to continuously fracture into sharp cutting points. This “slicing” action provides faster cutting, increased durability, and cooler operation compared to conventional abrasives.

View Brochure (PDF, 3.2 MB)
Do 3M™ Cubitron™ 3 Abrasives run cooler during heavy grinding?
Yes, they are designed to run cooler. The precision-shaped grain reduces friction and heat buildup, helping protect heat‑sensitive metals and maintaining abrasive performance during demanding cutting and grinding applications.

View Brochure (PDF, 3.2 MB)
What substrates can I use 3M™ Cubitron™ 3 Abrasives on?
They are suitable for a wide range of metals, including high‑strength and ultra high‑strength steel, aluminum alloys, titanium, carbon steel, and stainless steel.

View Brochure (PDF 3.2 MB)
Why choose 3M™ Cubitron™ 3 Fibre Discs for weld removal?
3M™ Cubitron™ 3 Fibre Discs provide a fast initial bite and maintain cutting speed on tough welds, helping technicians move through the heavy grinding stage more efficiently with fewer disc changeouts.

View Brochure (PDF, 3.2 MB)
How do 3M™ Cubitron™ II Abrasives help reduce rework in the paint booth?
3M™ Cubitron™ II Precision‑Shaped Grain creates a more consistent, uniform finish compared to conventional abrasives, reducing scratch patterns that lead to dieback, rework, or visible defects after painting.

Get the full story: Achieve smooth surfaces and sharper results.

A visual guide: Common sanding imperfections, explained (PDF, 34 KB).

Maximize your refinish hours. Explore our abrasive productivity resources and tips to identify and avoid scratches.
Do I need to change my current tools or dust extraction setup to use 3M™ Cubitron™ II Clean Sanding Discs or Sheets?
No. 3M™ Cubitron™ II Clean Sanding Discs or Sheets are designed to pair effortlessly with your existing pneumatic or electric random orbital sanders and hook-and-loop back-up pads. For best results, we recommend using tools with dust extraction such as 3M™ Pneumatic Precision Random Orbital Sander, 3M™ Electric Random Orbital Sander, paired with a 3M™ Clean Sanding System Dust Extractor.

Explore the 3M™ Clean Sanding System Dust Extractor online catalog or view brochure.
What 3M PPE is available to support cutting and grinding applications?
Explore 3M personal protective equipment for your hearing protection , face protection , and respiratory protection needs.