---
product_id: 34563647
title: "L-shape Piano Tuner Spanner Professional Wrench Square Shape Tip Tuning Hammer Tuner Spanner Tool"
brand: "onwon"
price: "€ 13.90"
currency: EUR
in_stock: true
url: https://www.desertcart.pt/products/34563647-l-shape-piano-tuner-spanner-professional-wrench-square-shape-tip
store_origin: PT
region: Portugal
---

# 16cm overall length 0.65cm inner bore L-shape design L-shape Piano Tuner Spanner Professional Wrench Square Shape Tip Tuning Hammer Tuner Spanner Tool

**Brand:** onwon
**Price:** € 13.90
**Availability:** ✅ In Stock

## Summary

> 🎶 Tune In, Stand Out! Your music deserves precision.

## Quick Answers

- **What is this?** L-shape Piano Tuner Spanner Professional Wrench Square Shape Tip Tuning Hammer Tuner Spanner Tool by onwon
- **How much does it cost?** € 13.90 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/34563647-l-shape-piano-tuner-spanner-professional-wrench-square-shape-tip)

## Best For

- onwon enthusiasts

## Why This Product

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

## Key Features

- • **Precision Tuning:** Achieve flawless sound with our expertly crafted tuning tool.
- • **Compact & Portable:** Easily fits in your toolkit or pocket for on-the-go adjustments.
- • **Durable Construction:** Made from hard steel for long-lasting performance and abrasion resistance.
- • **User-Friendly Design:** L-shape for effortless maneuverability and ease of use.
- • **Versatile Compatibility:** Perfectly designed for guzheng and other quadrilateral devices.

## Overview

The L-shape Piano Tuner Spanner is a professional-grade tuning tool designed for precision and ease of use. Crafted from durable hard steel, it features a compact design that makes it perfect for musicians on the go. With an inner bore size of 0.65cm and an overall length of 16cm, this tool is specifically tailored for tuning guzheng and other devices with quadrilateral openings. Ensure your instruments sound their best with this essential addition to your toolkit.

## Description

L-shape Piano Tuner Spanner Professional Wrench Square Shape Tip Tuning Hammer Tuner Spanner Tool

## Features

- The metal shaft is made of hard steel, abrasion resistance.
- Small and exquisite, convenient to carry it,L-shape design, easy to use it.
- Inner bore size: Approx. 0.65cm / 0.26inch;Overall Length: Approx. 16cm / 6.3inch;Handle Length: Approx. 10.5cm / 4.13inch.
- Specially designed for tuning guzheng and most machine devices that have quadrilateral openings.
- Note: Please measure the tip size of your device before purchasing, make sure the size of your devices match with the wrench quadrilateral.

## Images

![L-shape Piano Tuner Spanner Professional Wrench Square Shape Tip Tuning Hammer Tuner Spanner Tool - Image 1](https://m.media-amazon.com/images/I/31hVa2X4x+L.jpg)

## Questions & Answers

**Q: can it tune Steinway Grand piano?**
A: I used it on my 1913 Steinway.... but, it's really a bit short to get enough torque/accuracy...

**Q: Does it work with yamaha**
A: I don't know,  but it doesn't work on my Young Chang piano. :-(

**Q: Does this work with Melody Harp for children?**
A: the tuner hammer fitting is the size of a simple 1/4 inch drive socket

**Q: Will this work with an Autoharp or dulcimer zither pins?**
A: If the pins are like piano tuning pins then ya. But I’m not really sure

## Frequently Bought Together

- Onwon L-shape Piano Tuner Spanner Professional Wrench Square Shape Tip Tuning Hammer Tuner Spanner Tool
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**Shop now:** [https://www.desertcart.pt/products/34563647-l-shape-piano-tuner-spanner-professional-wrench-square-shape-tip](https://www.desertcart.pt/products/34563647-l-shape-piano-tuner-spanner-professional-wrench-square-shape-tip)

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-04-24*