3M Cubitron II 33437 File Belts, 36+ Grit, 3/8" x 13" (10 mm x 330 mm), Box of 10
- The 3M Cubitron II File Belt 33437 is a premium abrasive for fast, cooler metal removal—specifically engineered for spot-weld removal, deburring, and grinding using the 3M File Belt Sander.
- Features:
- Precision-Shaped Grain (ceramic/aluminum-oxide blend) delivers sharp, slicing action for fast, efficient cutting
- Runs cooler than conventional abrasives—minimizes heat-related discoloration, oxidation, and stress cracks
- Dry grinding aid coating further enhances cooling and reduces heat buildup during heavy use
- Resin-bonded on heavy-duty polyester backing for durability and consistent performance over life
- Specifications:
- Part No.: 33437
- Product Line: MMM
- MFR Model: 33437
- Applications: For tough detail work like cleaning, deburring, blending and finishing as well as working in small confined spaces
- Manufacturer: 3M Products
- Alternate Part Number-1: 60455081970
- UPC: 051131334373
- Brand: Cubitron II
- Belt Width (in): 3/8
- Grit: 36+
- Belt Length (in): 13
- Abrasive Material: Precision Shaped Ceramic
- Wet/Dry: Dry
- Series: 786F
- Color: Purple
- Backing Material: Polyester
- Part Number 33437, 3M Product Number 786F, 3M ID 60455081970, UPC 051131334373
- The file belt can also be referred to as Cubitron II 36+ file belt, 3/8-in × 13-in abrasive belt, 3M 786F file belt, spot-weld removal belt, and high-productivity ceramic file belt
Part of 3M’s Cubitron II line, the 33437 file belt uses advanced precision-shaped grain to slice through metal faster and cooler than conventional abrasives—making it a trusted choice for demanding industrial, automotive, and body-shop applications.
Q: What performance benefits does Cubitron II offer over standard abrasives?
A: Its uniquely shaped grains slice cleanly through metal, delivering up to 30 percent faster cutting and twice the belt life of conventional ceramic abrasives—while generating less heat and reducing risk of thermal damage.
Q: What are its primary applications?
A: Designed for use with 3M File Belt Sanders, it excels at efficiently grinding out rivets and spot welds, as well as general deburring, rust removal, and coating prep on hard metals.
Q: How is heat managed during heavy use?
A: The precision-shaped grain stays cool, and a dry grinding aid coating further curtails heat buildup—reducing risk of discoloration or heat-related stress issues.
