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3M Cubitron 3 Abrasive File Belt 33478, 80+, 1/2 in x 18 in - 3M Automotive

Part #: 33478

The 3M Cubitron 3 Abrasive File Belt 33478 is engineered for professional automotive and industrial applications, offering significant advancements in abrasive technology. Featuring re-engineered precision-shaped grain, this file belt cuts through hard metals faster and lasts considerably longer than conventional ceramic abrasives, including previous generation Cubitron II products. It delivers consistent and reliable performance throughout its extended lifespan, making it an efficient choice for demanding tasks.

Key Features

  • Advanced Precision-Shaped Grain: Utilizes re-engineered 3M Cubitron 3 precision-shaped grain technology for aggressive cut rates and superior durability on tough materials.
  • Rapid Material Removal: Slices efficiently through hard metals, enabling technicians to complete tasks quickly and effectively.
  • Exceptional Durability: Designed for an exceptionally long working life, providing consistent cutting performance from start to finish.
  • Versatile Compatibility: The 1/2 inch x 18 inch belt size fits a variety of file belt sander tools available on the market, including the 3M File Belt Sander.
  • Professional Grade Construction: Built to withstand the rigors of professional shop environments, ensuring reliable operation.
  • Grit and Size: This 80+ grit belt is ideal for coarse material removal and initial shaping.

Applications

The 3M Cubitron 3 Abrasive File Belt 33478 is a versatile tool for numerous metalworking and automotive repair tasks. It excels at efficiently grinding out rivets and removing spot welds during panel replacement or fabrication. This professional-grade abrasive is suitable for general metal deburring, shaping, and surface preparation in both automotive body shops and industrial settings where precision and speed are critical.

Specifications

  • Manufacturer: 3M Automotive
  • Model Number: 33478
  • Grit: 80+
  • Dimensions: 1/2 inch x 18 inch
We have 613 in stock
List: $53.00 Save: $3.02

$49.98

Free shipping on orders over $250
Lower 48 states and DC. Excludes freight and oversize items.
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  • Model: 439407
  • Shipping Weight: 0.22lbs
  • UPC: 068060066985
  • Manufacturers Part #: 33478
  • Manufactured by: 3M Automotive
  • Also Known As: MMM33478, MMM-33478

This product was added to our catalog on Thursday 28 May, 2026.

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