--- product_id: 591160335 title: "Piano Key Bushing Cauls for 3.4 to 3.7mm Keypins Installing New Piano Key Bushings Repair Parts 4Pcs" brand: "tuoren" price: "€ 53.55" currency: EUR in_stock: true category: "Tuoren" url: https://www.desertcart.gr/products/591160335-piano-key-bushing-cauls-for-3-4-to-3-7mm store_origin: GR region: Greece --- # Optimized for flawless felt insertion Precision fit for 3.4-3.7mm keypins High-density polyethylene for durability Piano Key Bushing Cauls for 3.4 to 3.7mm Keypins Installing New Piano Key Bushings Repair Parts 4Pcs **Brand:** tuoren **Price:** € 53.55 **Availability:** ✅ In Stock ## Summary > 🎹 Upgrade Your Piano Repair Game with Precision & Durability! ## Quick Answers - **What is this?** Piano Key Bushing Cauls for 3.4 to 3.7mm Keypins Installing New Piano Key Bushings Repair Parts 4Pcs by tuoren - **How much does it cost?** € 53.55 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/591160335-piano-key-bushing-cauls-for-3-4-to-3-7mm) ## Best For - tuoren enthusiasts ## Why This Product - Trusted tuoren brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Trusted by Pros:** TUOREN brand quality with a 4.2-star rating, making it the go-to tool for piano technicians and enthusiasts alike. - • **No Assembly Needed:** Ready to use straight out of the box—get your piano keys repaired without delay. - • **Perfect Precision Fit:** Engineered for the most common 3.4-3.7mm piano keypins to ensure seamless installation. - • **Durability Meets Design:** Crafted from high-density polyethylene plastic, offering superior wear and corrosion resistance for long-lasting use. - • **Effortless Felt Insertion:** Specially shaped cauls clamp felt perfectly during glue drying, guaranteeing a professional finish every time. ## Overview This set of 4 TUOREN Piano Key Bushing Cauls is designed for precise replacement of 3.4 to 3.7mm key bushings. Made from high-density polyethylene, these durable, corrosion-resistant tools ensure perfect felt insertion and clamping during glue drying, delivering professional-grade piano key repairs with no assembly required. ## Description About this item: KEY BUSHING CAULS REPLACEMENT: When replacing key bushing cauls it is important to use a caul to clamp the felt for the correct fit once the glue has dried. INSERTING CAUL AND GLUING FELT: Once the felt has been glued into the key mortise, insert the caul and cut the felt off at the shoulders of the bushing caul. Allow the glue to dry overnight for a good fit. Size Variation: * Cauls for 3.7mm / .145" keypins (Most Common) * Cauls for 3.6mm / .141" keypins * Cauls for 3.5mm / .137" keypins * Cauls for 3.4mm .133" keypins ## Features - Set of 4 Piano Key Bushing Cauls - Perfect for replacing the key bushings in pianos - Made of High Density Polyethylene plastic, wear and corrosion resistance - Excellent tool for gluing and inserting the felt into the key. - Cauls for 3.4-3.7mm(.133-.145") keypins(Most Common) please measure your keypin to determine caul size needed. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0C5Q4SDW3 | | Assembly Required | No | | Brand | TUOREN | | Brand Name | TUOREN | | Colour | red | | Customer Reviews | 4.2 out of 5 stars 3 Reviews | | Is Assembly Required? | No | | Item Shape | Rectangular | | Item Weight | 0.02 Kilograms | | Material | Plastic | | Material Type | Plastic | | Model Number | T0772 | | Number of Levels | 1 | | Part Number | T0772 | | Shape | Rectangular | | Special Features | Piano Key Bushing Replacement Tool | ## Product Details - **Colour:** red - **Material:** Plastic - **Brand:** TUOREN - **Item Weight:** 0.02 Kilograms - **Shape:** Rectangular ## Images ![Piano Key Bushing Cauls for 3.4 to 3.7mm Keypins Installing New Piano Key Bushings Repair Parts 4Pcs - Image 1](https://m.media-amazon.com/images/I/61SbNZ9l5eL.jpg) ![Piano Key Bushing Cauls for 3.4 to 3.7mm Keypins Installing New Piano Key Bushings Repair Parts 4Pcs - Image 2](https://m.media-amazon.com/images/I/41Bz5XtGhYL.jpg) ![Piano Key Bushing Cauls for 3.4 to 3.7mm Keypins Installing New Piano Key Bushings Repair Parts 4Pcs - Image 3](https://m.media-amazon.com/images/I/4125p5n3mlL.jpg) ![Piano Key Bushing Cauls for 3.4 to 3.7mm Keypins Installing New Piano Key Bushings Repair Parts 4Pcs - Image 4](https://m.media-amazon.com/images/I/51P4VeeJWGL.jpg) ![Piano Key Bushing Cauls for 3.4 to 3.7mm Keypins Installing New Piano Key Bushings Repair Parts 4Pcs - Image 5](https://m.media-amazon.com/images/I/51PPETzHssL.jpg) ## Frequently Bought Together - TUOREN Piano Key Bushing Cauls for 3.4 to 3.7mm Keypins Installing New Piano Key Bushings Repair Parts 4Pcs - CCeCCe 600 Pack Piano Balance Rail Punchings Kit Front Shims Paper Washer Regulating Gasket Ring Felt Pianos Leveling Keys Tuning Tool Piano Adjustment Maintenance Tools Spare Parts 6 Sizes - 90Pcs Yootones Piano Felt Pads Accessory Washers Cushion for Keyboard Balance Front Rail Regulating Repair Parts Replacement (Green) --- ## 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.gr/products/591160335-piano-key-bushing-cauls-for-3-4-to-3-7mm](https://www.desertcart.gr/products/591160335-piano-key-bushing-cauls-for-3-4-to-3-7mm) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-08-13*