---
product_id: 57379871
title: "Astro Pneumatic Tool 218 1/8\" Pencil Type Die Grinder - 56,000RPM,Black,Gold,Blue, 42377"
brand: "ap astro pneumatic tool company"
price: "$293.34"
currency: USD
in_stock: true
url: https://www.desertcart.ec/products/57379871-astro-pneumatic-tool-218-1-8-pencil-type-die-grinder
store_origin: EC
region: Ecuador
---

# 56,000 RPM high-speed power Variable speed twist throttle Lightweight 363g for tight spots Astro Pneumatic Tool 218 1/8" Pencil Type Die Grinder - 56,000RPM,Black,Gold,Blue, 42377

**Brand:** ap astro pneumatic tool company
**Price:** $293.34
**Availability:** ✅ In Stock

## Summary

> ⚡️ Speed Meets Precision: The Ultimate Die Grinder for the Detail-Driven Pro

## Quick Answers

- **What is this?** Astro Pneumatic Tool 218 1/8" Pencil Type Die Grinder - 56,000RPM,Black,Gold,Blue, 42377 by ap astro pneumatic tool company
- **How much does it cost?** $293.34 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/57379871-astro-pneumatic-tool-218-1-8-pencil-type-die-grinder)

## Best For

- ap astro pneumatic tool company enthusiasts

## Why This Product

- Trusted ap astro pneumatic tool company brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Featherlight Control:** Weighing just 363 grams, it fits perfectly in tight spaces without fatigue.
- • **Durable Aluminum Build:** Robust yet lightweight aluminum construction ensures longevity and ease of use.
- • **Tailored Throttle Twist:** Variable speed control lets you dial in the exact power for every job.
- • **Versatile Pro-Grade Tool:** Ideal for cleaning dies, rotors, brake pads, mounts, and more—your all-in-one finishing solution.
- • **Precision at Lightning Speed:** Unleash 56,000 RPM for flawless finishing and porting on small parts.

## Overview

The Astro Pneumatic 218 Pencil Type Die Grinder delivers a powerful 56,000 RPM with a lightweight 363g aluminum body, perfect for precision work in tight spaces. Featuring a variable speed twist throttle, it excels in high-speed porting, finishing, and cleaning applications across dies, rotors, brake pads, and mounts—making it an essential tool for professionals demanding speed, control, and versatility.

## Description

Astro Pneumatic Tool 218 1/8" Pencil Type Die Grinder - 56,000RPM,Black,Gold,Blue, 42377

## Features

- Lightweight and ideal for tight spots
- Twist throttle provides variable speed control
- Designed for high speed porting and finishing of small parts
- Ideal for cleaning of dies, rotors, backing plates, brake pads, mounts plus many other applications
- Free Speed: 56,000rpm

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Astro Pneumatic |
| Part Number | 218 |
| Product Dimensions | 13.21 x 36.83 x 50.04 cm; 362.87 g |
| Item model number | 218 |
| Size | 42377 |
| Colour | Black,blue,gold |
| Style | 1-PACK |
| Material | Aluminum |
| Thickness | 19.7 Inches |
| Power Source | pneumatic-powered |
| Voltage | 120 |
| Item Package Quantity | 1 |
| Special Features | Lightweight |
| Included Components | attachments |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 363 g |

## Product Details

- **Brand:** AP Astro Pneumatic Tool Company
- **Voltage:** 120
- **Power source:** pneumatic-powered
- **Recommended uses for product:** Cleaning, Grinding, Polishing
- **Colour:** Black,blue,gold

## Images

![Astro Pneumatic Tool 218 1/8" Pencil Type Die Grinder - 56,000RPM,Black,Gold,Blue, 42377 - Image 1](https://m.media-amazon.com/images/I/71nvrFcr4MS.jpg)

## Questions & Answers

**Q: Is there a trigger mechanism, or is it just always on when connected to air?**
A: There is a twisting mechanism that controls airflow. This allows for variable speed and shuts off the air completely

**Q: I am looking to mount in a lathe quick change tool holder  (any one know what the body OD is the blue part)**
A: 0.6250",15.87mm according to the mitututoyos, I would make a dual ring assymbly mounted to a tool post, bore the rings six .625 split one ended, drill and thread it to screw the rings closed further to grip the tool. But as always there's more than one way to go about things, I'm sure your could find a 1/2 inch boring bar holder and drill it ou55oversize and put the screws to it

**Q: It is leaking air from under the rearend holder when turned on. It does not spin. Just shoots air out of the back. Hose/hose fitting are not leaking***
A: I just returned one with the exac problem. Ive been working on and off for 50 years with small type air grinders but this jewel turned out to be a paste. I was Really disappointed that it didn’t represent its maker very well. One of these shouldn’t be seized just out of box, oiled and connected with correct air supply.

**Q: is this any good for use on resin counter tops?**
A: I would say it depends on what you're doing. If you're cutting the counter tops then no but if you're etching a design I'd say sure why not.

## Frequently Bought Together

- Astro Pneumatic Tool 218 1/8" Pencil Type Die Grinder - 56,000RPM,Black,gold,blue, 42377
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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-01-22*