3M Cubitron II 33446 File Belts, 1/2" x 18", 80 Grit, Purple, Box of 10
- The 3M Cubitron II File Belt 33446 is a high-performance abrasive belt featuring precision-shaped ceramic grain for rapid, cool cutting—ideal for spot-weld removal, deburring, and grinding in tight spaces.
- Features
- Features 3M's tough and best in class Cubitron II mineral
- Grains of ceramic/aluminum oxide blend are precisely-shaped, uniformly-sized and vertically oriented
- Slices through hard metal for fast cut
- Cubitron II abrasives run cooler, reducing risk of metal discoloration/oxidation and heat related stress cracks
- A grinding aid further enhances cooler running on high-strength steel
- Exceptionally long-lasting belt performs consistently and reliably throughout its life
- Used with the 3M File Belt Sander, easily grinds out rivets and spot welds
- Specifications
- Part No.: 33446
- Product Line: MMM
- MFR Model: 33446
- Manufacturer: 3M Products
- Alternate Part Number-1: 60455082069
- UPC: 051131334465
- Brand: Cubitron II
- Belt Width (in): 1/2
- Grit: 80
- Belt Length (in): 18
- Color: Purple
- 3M ID 60455082069, Part Number 33446
- The File Belt, 80+ Grit can also be referred to as Cubitron II abrasive belt 33446, precision-shaped grain file belt, ceramic sanding belt 1/2×18, metal deburring belt, spot-weld removal belt.
3M is a global leader in industrial abrasives, known for developing Precision-Shaped Grain technology that redefined abrasive performance. The Cubitron II line is respected for delivering fast, long-lasting belts that excel in professional metal fabrication, collision repair, and heavy-duty manufacturing.
Q: Will this belt fit my 3M File Belt Sander?
A: Yes, this 1/2 in × 18 in belt is compatible with 3M File Belt Sanders like model 28366 and most other file belt machines designed for that size.
Q: Can it be used on stainless or high-strength steel?
A: Absolutely. The precision-shaped ceramic grain and grinding aid keep the belt running cool, reducing heat build-up that can discolor or stress high-strength alloys.
Q: How often should I replace the belt?
A: Replace when cutting slows noticeably or the backing shows wear—Cubitron II belts typically last twice as long as conventional ceramic belts.
Q: Is this belt safe for removing spot welds?
A: Yes. It’s engineered for spot-weld removal and rivet grinding, offering precise control and fast metal removal when used with proper PPE.
