---
product_id: 339069824
title: "Dremel 421 Polishing Compound"
brand: "dremel"
price: "AR$16816"
currency: ARS
in_stock: true
reviews_count: 5
category: "Dremel"
url: https://www.desertcart.com.ar/products/339069824-dremel-421-polishing-compound
store_origin: AR
region: Argentina
---

# Fine grit 421 for high-luster polishing 27g solid compound vial for precision use 1/8” standard shank fits all Dremel tools Dremel 421 Polishing Compound

**Brand:** dremel
**Price:** AR$16816
**Availability:** ✅ In Stock

## Summary

> ✨ Elevate Every Detail with Dremel’s Polishing Precision ⚙️

## Quick Answers

- **What is this?** Dremel 421 Polishing Compound by dremel
- **How much does it cost?** AR$16816 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/339069824-dremel-421-polishing-compound)

## Best For

- dremel enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Shine Boost:** Use with felt or cloth buffing wheels to add that irresistible extra gloss your work deserves.
- • **Versatile Material Use:** Perfectly polishes both metals and plastics, elevating your projects’ finish to professional-grade.
- • **Universal Compatibility:** Seamlessly fits all Dremel rotary tools with a 1/8” shank for effortless accessory swaps.
- • **Precision Polishing Power:** Fine grit 421 compound removes dull oxidation and light imperfections for a showroom shine.
- • **Compact & Controlled Application:** 27g solid compound vial ensures no waste and precise polishing every time.

## Overview

The Dremel 421 Polishing Compound is a fine grit, solid polishing compound designed for use with Dremel rotary tools. Compatible with all corded and cordless models, it fits the standard 1/8” shank and is ideal for removing oxidation and light surface imperfections on metals and plastics. Packaged in a 27g vial, it delivers controlled application and high-luster finishes when used with felt or cloth buffing wheels.

## Description

Make the most of your Dremel rotary tools by using our innovative & extensive line of rotary accessories and attachments. Whatever your project, we’ve got the perfect solution for you. Dremel accessories fit inside your rotary tool to extend its versatility. Whether you’re looking to carve, engrave, cut, sand or grind, there is a Dremel accessory to get the job done with pinpoint precision. That’s why our purpose-built Dremel accessories let you get your project right down to the last detail. Dremel polishing compound is used to remove dull oxidized film and light imperfections on metals and plastics. This hard compound is applied with cloth or felt polishing rotary tool accessories and nylon bristle brushes. Compatible with all Dremel corded and cordless rotary tools. There’s no need to hunt for the right collet, all Dremel rotary accessories feature a 1/8” standard shank. Dremel accessories are also color-coded into usage categories to make it easier for you to select the right accessory for your project.

Review: 内容量が少ないのか気になりますか、使い勝手がよく色々な素材に使えます。
Review: Compré este compuesto para la amoladora dremel tengo que decir que el pulido que hace es espectacular,sobre todo si son para superficies pequeñas,he quedado satisfecho con el producto

## Features

- Oz, vial for cleaning and polishing metals and Plastics, use polishing compound with buffing wheels to produce a high luster
- Adds Extra shine to your product
- Manufactured in China
- Use felt or cloth
- Solid compound.Polish metals and plastics

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00004UDH4 |
| ASIN  | B00004UDH4 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #7,707 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #6 in Power Rotary Tool Accessories |
| Color | Silver |
| Customer Reviews | 4.4 4.4 out of 5 stars (2,650) |
| Customer reviews | 4.4 4.4 out of 5 stars (2,650) |
| Date First Available | 28 July 2017 |
| Date First Available  | 28 July 2017 |
| Department  | Unisex-Adult |
| Grit Description | Fine |
| Grit Rating | 421 |
| Included components | household-polish |
| Is Discontinued By Manufacturer  | No |
| Item Package Quantity | 1 |
| Item Weight | 27.2 g |
| Item model number | 421 |
| Item model number  | 421 |
| Manufacturer | Dremel |
| Manufacturer  | Dremel |
| Material | Solid Compound |
| Part number | 421 |
| Product Dimensions | 10.48 x 0.43 x 10.48 cm; 27.22 g |
| Product Dimensions  | 10.48 x 0.43 x 10.48 cm; 27.22 g |
| Size | Pack of 1 |

## Product Details

- **Brand:** Dremel
- **Grit material:** Rottenstone
- **Grit type:** Fine
- **Item dimensions L x W x H:** 10.5 x 0.4 x 10.5 centimeters
- **Material:** Solid Compound

## Images

![Dremel 421 Polishing Compound - Image 1](https://m.media-amazon.com/images/I/51SQtHUSxzL.jpg)

## Questions & Answers

**Q: Can I use this for a feeding ramp on a 1911 45 acp?**
A: Technically, you cannot polish a metal surface w/o removing metal. As a machinist, the amount of metal you remove may not need to be more than .00001", (one ten millionth of an inch). However, that's to be very 'technically literal'. Gauge blocks or pin-gauges, in mold & tool making instances would be very concerned about .00001". Still, my point is that, in metal materials, one must remove a certain amount of that metallic surface in order for it to be polished. 

The ramp of a 1911 would likely polish up easily providing the gun maker didn't leave tool marks deeper than .0001" (one, one ten thousandth of an inch). The American measurement system in machine shop and manufacturing in general, has always made it hard to explain to someone who would typically note "one tenth of an inch" like this: 0.100. 

In fact, in a machine shop, if you said something like "face-off one tenth", the machinist would remove only this much material: 0.0001, which is extremely small. 

An average human hair is about .005". One tenth of a human hair is .0005". Therefore, "one ten thousandth of one inch is .0001", which is 5 times smaller than .0005" and about 1/50th of a human hair...

I guess this is why they're trying to convert to the metric system. I retired almost 20 years ago and even then, there was a lot of resistance to converting to the metric system because the measure tools, cutting tools, blueprints, and the general machining references would all have to change. 

Just the machinist's standard set of measuring tools that each experienced machinist of 5 to 6 years or more, owned, would have cost well over $500 in 1980, and over $1100 in 1987. 

Very few of the tools purchased before 1985 included a metric scale and many still don't. I owned an advanced set of hand tools purchased over a 25+ year time span. In 1992, I was contracted to a small tool-making machine shop, which was broken into and all the tools were robbed. 

The company's insurance would only pay 80% of each man's replacement tool costs. I received a $4200 check and I was not very happy about it...

So you can see why many American machinist don't want to switch to the metric system. It could potentially be very expensive and that's just one aspect of at least five conversion points, which the complete conversion could cost.
FWIW

**Q: can you use this as a final polish on agate?**
A: Thank you for asking your question.  Our polishing compound is 400 grit and not something you would use for a finishing compound. We would recommend you get a jewelers rouge with a higher grit to do the final polish on agate.

**Q: It is suitable for polishing glass..?**
A: No, Dremel 421 polishing compound will not polish glass.

**Q: Can anyone say with authority what the grit size is and what material the grit is?  Is it diamond or quartz/sand or something else?**
A: Hello,

The compound is 400 grit.  It is 76% silicon carbide and 24% vitrified bond.  It is not classified hazardous.

## Customer Reviews

### ⭐⭐⭐⭐ Review
*by A***ー on 9 May 2018*

内容量が少ないのか気になりますか、使い勝手がよく色々な素材に使えます。

### ⭐⭐⭐⭐⭐ Review
*by J***N on 18 April 2024*

Compré este compuesto para la amoladora dremel tengo que decir que el pulido que hace es espectacular,sobre todo si son para superficies pequeñas,he quedado satisfecho con el producto

### ⭐⭐⭐⭐⭐ Review
*by P***S on 8 September 2025*

Quality polishing compound.

## Frequently Bought Together

- Dremel 421 Polishing Compound
- 100PCS Polishing Buffing Wheel for Dremel Polishing Kit, Polishing Wheel for Dremel Tool Accessories, with 1/8" Shank for Dremel Buffing Wheels
- Dremel 726-01 Cleaning & Polishing Rotary Tool Accessory Kit with Storage Case, 20-Piece Set - Includes Buffing Wheels, Polishing Bits, and Compound

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.com.ar/products/339069824-dremel-421-polishing-compound](https://www.desertcart.com.ar/products/339069824-dremel-421-polishing-compound)

---

*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-02-15*