---
product_id: 386294783
title: "3M Cubitron II File Belt, 33437, 36+ Grit, 3/8 in x 13 in, Pack of 10 File Belts, Resin Bonded, Spot Weld Removal"
brand: "3m"
price: "C$4353"
currency: NIO
in_stock: true
reviews_count: 11
category: "3 M"
url: https://www.desertcart.ni/products/386294783-3m-cubitron-ii-file-belt-33437-36-grit-3-8
store_origin: NI
region: Nicaragua
---

# 2x longer belt life 30% faster cut speed Precision-shaped grain tech 3M Cubitron II File Belt, 33437, 36+ Grit, 3/8 in x 13 in, Pack of 10 File Belts, Resin Bonded, Spot Weld Removal

**Brand:** 3m
**Price:** C$4353
**Availability:** ✅ In Stock

## Summary

> ⚡ Cut faster, last longer — the ultimate abrasive belt for pros who demand more.

## Quick Answers

- **What is this?** 3M Cubitron II File Belt, 33437, 36+ Grit, 3/8 in x 13 in, Pack of 10 File Belts, Resin Bonded, Spot Weld Removal by 3m
- **How much does it cost?** C$4353 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/386294783-3m-cubitron-ii-file-belt-33437-36-grit-3-8)

## 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 & Compatible:** Perfectly fits most file belt sanders for rivet, weld, and spot removal in tight spaces.
- • **Cut Through Metal Like Lightning:** Experience 30% faster cutting power that slices through tough metals effortlessly.
- • **Consistent Heavy-Duty Performance:** Engineered for reliable strength and uniform abrasive wear on every job.
- • **Precision-Shaped Grain Technology:** Sharp, triangular ceramic grains that fracture to maintain peak cutting efficiency.
- • **Double the Durability, Half the Downtime:** Lasts twice as long as premium abrasives, keeping your workflow uninterrupted.

## Overview

The 3M Cubitron II File Belt 33437 is a premium 36+ grit zirconia alumina abrasive belt designed for industrial use. Featuring 3M's Precision-Shaped Grain technology, it delivers 30% faster cutting and twice the lifespan of conventional belts. Ideal for spot weld removal, deburring, and metal finishing, this pack of 10 belts fits most file belt sanders and ensures consistent, heavy-duty performance in demanding workshop environments.

## Description

Superior Repairs on Plastic Parts. This highly effective black two-part urethane adhesive delivers first-rate repairs on parts constructed of thermoplastic polyolefins (TPO) and ethylene propylene plastics notated on the part as PP, EP, TPO or EPD. An extremely fast work time makes 3M™ TPO Plastic Parts Repair an excellent choice for repairing nicks, gouges or small defects. The 1-hour cure time and 30-minute paint time increases productivity for follow-up steps. Use 3M TPO Plastic Parts Repair with 3M EZ Sand Rigid Parts Repair, PN 05885 instead of polyester repair products such as body filler or glaze. The Science of Better Auto Body Work from 3M. We put decades of development into our products for auto care and repair to help save you time and get the most enjoyment and value from the vehicles you own. Our 3M TPO Plastic Parts Repair is another great example of how 3M applies science to life and makes your life easier when it comes to making vehicles look their best. 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 maximise productivity and deliver an efficient process in the workshop.

Review: These wear out fast. - I want to start by saying that I am new to choosing sandpaper for different tasks. I bought this for work to clean weld spots in tough spots. I have the milwaukee m12 adjustable belt sander and these fit perfectly. However they wear out incredibly fast. This could be due to my inexperience, or the product so I still gave it 5 stars. This belt and sander combo will chew through metal at a cost.the bright color of the belt does make it nice and easy to see through the sparks flying to the ceiling.
Review: There is no better - Over the past few years I find myself only using 3M Cubitron abrasives. When I do the math it saves me money and time. Paying 1.5-2.5x the price for something that cuts better, faster, and lasts 10x as long is a no-brainer. I love Cubitron in every form.

## 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 | B00PB3OAJI |
| Best Sellers Rank | #173,412 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #201 in Sander Belts |
| Brand | 3M |
| Customer Reviews | 4.4 4.4 out of 5 stars (37) |
| Date First Available | November 5, 2014 |
| Global Trade Identification Number | 00051131334373, 50051131334378 |
| Grit Material | Ceramic/Aluminum Oxide Blend |
| Grit Number | 36 |
| Grit Type | 36+ Grit |
| Item Weight | 3.22 ounces |
| Item dimensions L x W x H | 1.38 x 2.63 x 5.5 inches |
| Item model number | 33437 |
| Manufacturer | 3M |
| Manufacturer Part Number | 33437 |
| Material | Zirconia Alumina |
| Model | 33437 |
| Number of Items | 10 |
| Product Dimensions | 1.38 x 2.63 x 5.5 inches |
| Set Name | Pack of 10 |
| UPC | 051131334373 |

## Product Details

- **Brand:** 3M
- **Grit Material:** Ceramic/Aluminum Oxide Blend
- **Grit Type:** 36+ Grit
- **Item dimensions L x W x H:** 1.38 x 2.63 x 5.5 inches
- **Material:** Zirconia Alumina

## Images

![3M Cubitron II File Belt, 33437, 36+ Grit, 3/8 in x 13 in, Pack of 10 File Belts, Resin Bonded, Spot Weld Removal - Image 1](https://m.media-amazon.com/images/I/61zFzz-ILWL.jpg)
![3M Cubitron II File Belt, 33437, 36+ Grit, 3/8 in x 13 in, Pack of 10 File Belts, Resin Bonded, Spot Weld Removal - Image 2](https://m.media-amazon.com/images/I/71nGpIPvKXL.jpg)
![3M Cubitron II File Belt, 33437, 36+ Grit, 3/8 in x 13 in, Pack of 10 File Belts, Resin Bonded, Spot Weld Removal - Image 3](https://m.media-amazon.com/images/I/71A08OOG9oL.jpg)
![3M Cubitron II File Belt, 33437, 36+ Grit, 3/8 in x 13 in, Pack of 10 File Belts, Resin Bonded, Spot Weld Removal - Image 4](https://m.media-amazon.com/images/I/71baNonrINL.jpg)
![3M Cubitron II File Belt, 33437, 36+ Grit, 3/8 in x 13 in, Pack of 10 File Belts, Resin Bonded, Spot Weld Removal - Image 5](https://m.media-amazon.com/images/I/71IyGkQy5PL.jpg)

## Available Options

This product comes in different **Size, Grit Type** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ These wear out fast.
*by R***R on January 28, 2026*

I want to start by saying that I am new to choosing sandpaper for different tasks. I bought this for work to clean weld spots in tough spots. I have the milwaukee m12 adjustable belt sander and these fit perfectly. However they wear out incredibly fast. This could be due to my inexperience, or the product so I still gave it 5 stars. This belt and sander combo will chew through metal at a cost.the bright color of the belt does make it nice and easy to see through the sparks flying to the ceiling.

### ⭐⭐⭐⭐⭐ There is no better
*by D***J on July 13, 2024*

Over the past few years I find myself only using 3M Cubitron abrasives. When I do the math it saves me money and time. Paying 1.5-2.5x the price for something that cuts better, faster, and lasts 10x as long is a no-brainer. I love Cubitron in every form.

### ⭐⭐⭐⭐⭐ Lasts FAR longer than the belts you'll get for cheaper.
*by E***A on May 8, 2023*

Have to admit, I've given this belt a hot supper a few times, it's totally come back for seconds. Outlasts all the others I've tried and puts the cheap ones to shame. Totally worth it!

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**Shop now:** [https://www.desertcart.ni/products/386294783-3m-cubitron-ii-file-belt-33437-36-grit-3-8](https://www.desertcart.ni/products/386294783-3m-cubitron-ii-file-belt-33437-36-grit-3-8)

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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-03-10*