---
product_id: 39319355
title: "3M Cubitron II File Belt, 33446, 80+ Grit, 1/2 in x 18 in, File Belts, Resin Bonded, Spot Weld Removal, Pack of 10"
brand: "3m"
price: "S$107"
currency: SGD
in_stock: true
reviews_count: 11
category: "3 M"
url: https://www.desertcart.sg/products/39319355-3m-cubitron-ii-file-belt-33446-80-grit-1-2
store_origin: SG
region: Singapore
---

# 2x longer abrasive life 30% faster cut speed Precision-shaped grain tech 3M Cubitron II File Belt, 33446, 80+ Grit, 1/2 in x 18 in, File Belts, Resin Bonded, Spot Weld Removal, Pack of 10

**Brand:** 3m
**Price:** S$107
**Availability:** ✅ In Stock

## Summary

> ⚡ Slice Faster, Last Longer, Work Smarter!

## Quick Answers

- **What is this?** 3M Cubitron II File Belt, 33446, 80+ Grit, 1/2 in x 18 in, File Belts, Resin Bonded, Spot Weld Removal, Pack of 10 by 3m
- **How much does it cost?** S$107 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/39319355-3m-cubitron-ii-file-belt-33446-80-grit-1-2)

## Best For

- 3m enthusiasts

## Why This Product

- Trusted 3m brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Versatile Toughness:** Perfect for spot weld removal, deburring, and cleaning in tight, hard-to-reach spaces.
- • **Seamless Compatibility:** Fits most file belt sanders, making it the go-to choice for industrial-grade precision.
- • **Engineered for Consistency:** Heavy-duty resin bond and electrostatically oriented grains ensure uniform wear and reliable performance.
- • **Cut Through Metal Like a Pro:** Cubitron II’s sharp triangular grains slice, not plow, for ultra-efficient metal removal.
- • **Double the Life, Double the Value:** Lasts twice as long as premium abrasives—less downtime, more productivity.

## Overview

The 3M Cubitron II File Belt 33446 (80+ grit) is a premium industrial abrasive belt featuring advanced Precision-Shaped Grain technology for 30% faster cutting and double the lifespan of conventional belts. Designed for heavy-duty spot weld removal, deburring, and metal finishing, this resin-bonded belt delivers consistent, reliable performance in tight spaces and fits most file belt sanders. Sold in packs of 10, it’s the professional’s choice for maximizing workshop efficiency.

## Description

Use 3M Cubitron II File Belt 786F as high durability and long-lasting performance premium abrasive belt. It is ideal for tough detail work like cleaning, deburring, blending and finishing as well as working in small confined spaces. The 3M Cubitron II File Belt 786F is equipped with 3M Cubitron II Abrasives, which feature our Precision-Shaped Grain (PSG) technology with uniformly sized ceramic grains and precisely shaped triangular structures - essentially, sharp peaks that slice, not plow, through paint and metal. These grains are electrostatically oriented on the abrasive surface for the most efficient cut and even wear. Additionally, they fracture during use to maintain sharp abrasive edges resulting in a 30% faster cut and lasting 2x longer life than conventional ceramic abrasives. 3M Cubitron II File Belt 786F is available in various coarse grades and various widths as well as various lengths; it can be fitted on to various types of file belt machines available on the market. It helps to maximize productivity and deliver an efficient process in the workshop.

Review: Little pricy but great quality and worth the money . - These are excellent for sanding and grinding .
Review: Great belts - Awesome belts. Have lasted quite a while doing truck floor pans and get mill scale off hard to reach spots on stamped sheet metal.

## Features

- LONGER LASTING: Cubitron II delivers 30 percent faster cut and double the life of other premium abrasives
- UNIFORM ABRASIVE: 3M Cubitron II technology provides an efficient cut that easily cleans, strips, and deburrs
- FAST CUTTING: Versatile belt slices through hard metal for quick cut
- COMPATIBLE: Grinds out rivets and spot welds quickly when used with 3M File Belt Sander
- RELIABLE: Heavy-duty belt stays reliably strong for consistent performance
- For industrial/occupational use only. Not for consumer sale or use.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00PB3OFSO |
| Best Sellers Rank | #36,534 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #42 in Sander Belts |
| Brand | 3M |
| Date First Available | October 15, 2011 |
| Department | unisex-adult |
| Global Trade Identification Number | 00051131334465, 50051131334460 |
| Grit Material | Aluminum Oxide, Ceramic |
| Grit Number | 80 |
| Grit Type | 80+ Grit |
| Item Weight | 3.73 ounces |
| Item dimensions L x W x H | 1.38 x 3.5 x 7.88 inches |
| Item model number | 33446 |
| Manufacturer | 3M |
| Material | Alloy Steel, Metal, Resin |
| Number of Items | 10 |
| Product Dimensions | 1.38 x 3.5 x 7.88 inches |
| Set Name | Pack of 10 |
| UPC | 051131334465 |

## Product Details

- **Brand:** 3M
- **Grit Material:** Aluminum Oxide, Ceramic
- **Grit Type:** 80+ Grit
- **Item dimensions L x W x H:** 1.38 x 3.5 x 7.88 inches
- **Material:** Alloy Steel, Metal, Resin

## Images

![3M Cubitron II File Belt, 33446, 80+ Grit, 1/2 in x 18 in, File Belts, Resin Bonded, Spot Weld Removal, Pack of 10 - Image 1](https://m.media-amazon.com/images/I/61IuF3VOVQL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Will this work for grinding glass tiles for backslash?**
A: Thank you for your question. Unfortunately this abrasive is not designed for grinding glass.  For glass grind abrasives, we suggest you contact 3M Abrasives at 866-279-1235.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Little pricy but great quality and worth the money .
*by J***N on October 25, 2025*

These are excellent for sanding and grinding .

### ⭐⭐⭐⭐⭐ Great belts
*by A***R on December 11, 2025*

Awesome belts. Have lasted quite a while doing truck floor pans and get mill scale off hard to reach spots on stamped sheet metal.

### ⭐⭐⭐⭐⭐ These sanding belts were my go-to for these carvings
*by A***N on May 2, 2025*

Right out of the box, I could tell these sanding belts were solid. The grit didn’t just rub off on my fingers like some cheaper ones do—it felt like it was built to last. I used it on a big wood project, and the grit held up way longer than the other sanding belts I’ve tried. Even the expensive big name brands from Lowes and Home Depot fell short in comparison. These stayed effective, sanding efficiently without losing grit, even after a lot of use. This is definitely a quality product that lasts longer than most, and I’ll be stocking up on more for sure

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-03-06*