---
product_id: 141362816
title: "SI FANG Turbine Reciprocating Pneumatic Pencil Grinder Air File Micro | for Mould Metal Lapping Filing Grinding Buffing Polishing Sanding Tools Ultrasound Die Grinder Kit"
brand: "si fang"
price: "$138.06"
currency: USD
in_stock: true
category: "Si Fang"
url: https://www.desertcart.us/products/141362816-si-fang-turbine-reciprocating-pneumatic-pencil-grinder-air-file-micro
store_origin: US
region: United States of America
---

# 90 PSI air pressure Low noise & vibration 28,000 RPM max speed SI FANG Turbine Reciprocating Pneumatic Pencil Grinder Air File Micro | for Mould Metal Lapping Filing Grinding Buffing Polishing Sanding Tools Ultrasound Die Grinder Kit

**Brand:** si fang
**Price:** $138.06
**Availability:** ✅ In Stock

## Summary

> ⚡ Elevate your craft with precision power and silent finesse!

## Quick Answers

- **What is this?** SI FANG Turbine Reciprocating Pneumatic Pencil Grinder Air File Micro | for Mould Metal Lapping Filing Grinding Buffing Polishing Sanding Tools Ultrasound Die Grinder Kit by si fang
- **How much does it cost?** $138.06 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/141362816-si-fang-turbine-reciprocating-pneumatic-pencil-grinder-air-file-micro)

## Best For

- si fang enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Portable:** Lightweight 0.59 kg design fits perfectly in your toolkit for on-the-go mastery
- • **Oil-Free Convenience:** No lubricating oil needed—clean, hassle-free performance every time
- • **Precision Powerhouse:** Turbocharged 28,000 RPM for flawless mold and metal finishing
- • **Effortless Efficiency:** Achieve mirror-polished surfaces with half the effort—FOMO for every craftsman
- • **Whisper-Quiet Operation:** Low noise and vibration keep your workspace professional and focused

## Overview

The SI FANG Turbine Reciprocating Pneumatic Ultrasound Grinder is a high-speed, air-powered die grinder designed for precision polishing, grinding, and surface treatment of molds and metals. Operating at up to 28,000 RPM with 90 PSI air pressure, it delivers efficient, low-vibration, and low-noise performance without the need for lubricating oil. Compact and portable, it’s ideal for professional mold repair, jewelry finishing, and detailed metalwork.

## Description

desertcart.com: SI FANG Turbine Reciprocating Pneumatic Ultrasound Grinder Micro Pneumatic Air Pencil Die Grinder Kit for Mould Metal Lapping Filing Grinding Buffing Polishing Sanding Tools : Tools & Home Improvement

## Features

- Suitable for industry polishing, grinding and surface treatment of industry mold and jewelry.
- Surface repair mould roughing and mirror polishing,can reduce work mould surface roughness rapidly until the lens, manual irreplaceable effect, get twice the result with half the effort.
- Turbine reciprocating pneumatic ultrasound grinding machine,using different fixture, can clamping mould , mini ceramic fiber oilstone、file and other ground tool,to all sorts of metal cutting,narrow slot、grinding 、polishing to mirror etc . Especially mould parts of precision processing , widely applied in all kinds of abrasive
- Air pressue: 90 PSI, Air consumption:0.08 m3/min,No need of lubricating oil,RPN: 30000 /min
- Small volume, feel is good, low vibration, low noise, Speed and torque

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07SJZKVX2 |
| Best Sellers Rank | #281,893 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #89 in Power Die Grinders |
| Brand | SI FANG |
| Brand Name | SI FANG |
| Color | Blue |
| Customer Reviews | 4.2 out of 5 stars 59 Reviews |
| Item Weight | 0.59 Kilograms |
| Manufacturer | SHUQIU |
| Material | Metal |
| Material Type | Metal |
| Maximum Rotational Speed | 28000 RPM |
| Model Number | 0c87c32d-ba14-47a3-bb38-e35c90594921 |
| Power Source | Air Powered |
| Style | Portable |
| Style Name | Portable |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** SI FANG
- **Color:** Blue
- **Material:** Metal
- **Power Source:** Air Powered
- **Style:** Portable

## Images

![SI FANG Turbine Reciprocating Pneumatic Pencil Grinder Air File Micro | for Mould Metal Lapping Filing Grinding Buffing Polishing Sanding Tools Ultrasound Die Grinder Kit - Image 1](https://m.media-amazon.com/images/I/61dtNlWKUEL.jpg)

## Questions & Answers

**Q: Your pictures shows a plastic connector between the motor and collet, how well do you think it handle the reciprocal motion?**
A: It seems to be functioning quite well and I have put several hours on mine

**Q: What is the stroke length? How many strokes per minute minimum and maximum?**
A: This is ultrasonic and not profiler

**Q: Is there any warranty?**
A: I'm not sure if there is a warranty but considering the price is not even one quarter of the price on most ultrasonics l considerate a good investment are you smiling regularly with no issues

**Q: What kind of air coupler is used in this item?**
A: That is an excellent question.  The air coupler is not recognizable to me and doesn't fit any connections that I know of (industrial, automotive or ARO), and there is no way to switch it out, so probably going to have to return the item.

## Frequently Bought Together

- SI FANG Turbine Reciprocating Pneumatic Ultrasound Grinder Micro Pneumatic Air Pencil Die Grinder Kit for Mould Metal Lapping Filing Grinding Buffing Polishing Sanding Tools
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- Astro Pneumatic Tool 218 1/8" Pencil Type Die Grinder - 56,000RPM,Black,gold,blue, 42377

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-08-04*