---
product_id: 34563647
title: "L-shape Piano Tuner Spanner Professional Wrench Square Shape Tip Tuning Hammer Tuner Spanner Tool"
brand: "onwon"
price: "€ 15.84"
currency: EUR
in_stock: true
category: "Onwon"
url: https://www.desertcart.es/products/34563647-l-shape-piano-tuner-spanner-professional-wrench-square-shape-tip
store_origin: ES
region: Spain
---

# 0.65cm precision bore abrasion-resistant steel shaft 16cm ergonomic L-shape L-shape Piano Tuner Spanner Professional Wrench Square Shape Tip Tuning Hammer Tuner Spanner Tool

**Brand:** onwon
**Price:** € 15.84
**Availability:** ✅ In Stock

## Summary

> 🎹 Tune Like a Pro, Anywhere, Anytime!

## 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?** € 15.84 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/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

- • **Durable Steel Core:** Hard steel shaft ensures long-lasting abrasion resistance and reliable performance.
- • **Ergonomic L-Shape Handle:** Optimized 16cm length and 10.5cm handle for maximum leverage and comfort during tuning.
- • **Trusted by Professionals:** Ranked #114 in Music Tuning Accessories with 4.4-star reviews—join the expert community tuning smarter.
- • **Compact & Portable Design:** Lightweight 78g tool fits effortlessly in your toolkit or pocket for on-the-go tuning.
- • **Precision Fit for Guzheng & More:** Engineered to perfectly match quadrilateral tuning pins for flawless adjustments.

## Overview

This L-shape Piano Tuner Spanner is a precision-engineered wrench designed specifically for tuning guzhengs and other instruments with quadrilateral tuning pins. Crafted from abrasion-resistant steel and engineering plastics, it features a 0.65cm inner bore and a compact 16cm length for ergonomic handling. Lightweight and portable, it’s a trusted tool favored by professionals and hobbyists alike, ensuring accurate and effortless tuning wherever you go.

## Description

Note: Please measure the tip size of your device before purchasing, make sure the size of your devices match with the wrench quadrilateral. Specifications: Material: Engineering plastics & Steel Inner bore size: Approx. 0.65cm / 0.26in Overall Length: Approx. 16cm / 6.3in Handle Length: Approx. 10.5cm / 4.13in Weight: 78g / 2.74oz Package includes: 1 * Square Shape Piano Tuner Spanner

## 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01DZR6TEU |
| Best Sellers Rank | #7,192 in Musical Instruments ( See Top 100 in Musical Instruments ) #114 in Music Tuning Accessories |
| Body Material | Engineering Plastics, Steel |
| Customer Reviews | 4.4 4.4 out of 5 stars (843) |
| Date First Available | April 8, 2016 |
| Item Weight | 2.46 ounces |
| Item model number | ONW0020 |
| Material Type | Engineering Plastics, Steel |
| Package Dimensions | 8.19 x 4.41 x 0.87 inches |

## 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
- XUYIYUE Piano Power Tuning Pin Socket Socket Disassembling Piano Tools Piano Tuning Pin Removal Tool Tetragonal Internal Opening Quick Removal Of Piano String Shaft
- TUOREN Piano Tuning Pin Removal Tool Power Piano Tuning Pin Socket with Ratchet Star Head

---

## 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.es/products/34563647-l-shape-piano-tuner-spanner-professional-wrench-square-shape-tip](https://www.desertcart.es/products/34563647-l-shape-piano-tuner-spanner-professional-wrench-square-shape-tip)

---

*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-09-24*