--- product_id: 95585210 title: "Metal Ring Stretcher Rathburn 6-1/2 Inches" brand: "megacast" price: "€ 38.36" currency: EUR in_stock: true reviews_count: 13 url: https://www.desertcart.pt/products/95585210-metal-ring-stretcher-rathburn-6-1-2-inches store_origin: PT region: Portugal --- # Fits rings size 6 and larger Hardened stainless steel for durability Lightweight & portable for on-the-go use Metal Ring Stretcher Rathburn 6-1/2 Inches **Brand:** megacast **Price:** € 38.36 **Availability:** ✅ In Stock ## Summary > ⚡ Stretch your style, not your patience! ## Quick Answers - **What is this?** Metal Ring Stretcher Rathburn 6-1/2 Inches by megacast - **How much does it cost?** € 38.36 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/95585210-metal-ring-stretcher-rathburn-6-1-2-inches) ## Best For - megacast enthusiasts ## Why This Product - Trusted megacast brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Portable & Lightweight:** Compact 6.5-inch tool fits in any jeweler’s kit for work anywhere - • **Precision Expansion Control:** Easily stretch rings up to one full finger size without damage - • **Durable Hardened Steel Build:** Engineered for longevity and consistent performance - • **Multi-Stepped Mandrel Design:** Seven size steps ensure perfect fit and smooth resizing - • **Safe for Soft Precious Metals:** Ideal for gold, silver, copper—just avoid stone-set or delicate rings ## Overview The Rathburn 6-1/2 inch Metal Ring Stretcher is a professional-grade tool crafted from hardened stainless steel, designed to safely enlarge plain metal rings size 6 and above. Featuring a multi-stepped mandrel and tapered pin expander, it offers precise, controlled stretching up to one finger size. Lightweight and portable, it’s perfect for jewelers and metalworkers seeking reliable, on-the-go resizing without risking damage to precious metals like gold, silver, and copper. ## Description Ideal For Everyone: This Rathburn Ring Stretcher is ideal for both beginners as well as expert jewelers to increase the size of a ring. Notes: (1) Not to be used for stone-set rings. (2) Before using you should anneal your ring. (3) Some rings with weak solder joints, and some cast rings (casting causes metal to be more porous) can break when stretched. (4) You have to make sure you use ring stretchers with plain ring bands only. (5) A light coat of oil is applied to the stretcher to avoid Oxidation. (6) Do not use Titanium, Tungsten, or Stainless Steel. These metals are delicate and will break. Keep in Mind: Inspect for any solder joints that may break apart when stretching. You may need to anneal to soften the ring to afford the expansion of the metal. Generally, this tool fixture will not expand more than 1 finger size. Specification: Material: Steel Application Type: Ring Enlarging Ring Size Capacity: 6 Or Larger Finger Size Steps on Collet Holder: 7 Overall Length: 6-1/2" with base Weight: 9.59 Ounces (271.88 grams) Product Dimensions: 5.8 x 1.2 x 1.2 inches (14.7 x 3 x 3.3 cm) Package Content: Tapered Pin, Mandrel with Nylon Base. ## Features - The Rathburn Stretcher: This Rathburn Ring Stretcher is made from hardened stainless steel. It consists of three parts: A Tapered Pin expander, collet multi-stepped Mandrel, and one nylon die - Features: This handy-sized Ring Stretcher allows you to quickly and efficiently stretch & enlarge rings and bands. It is lightweight and portable so you can work easily anywhere around the world. - Function: First place the ring on the stepped collet, choose the size that the rings fit onto and then place the expansion collet on the base. Then insert the tapered pin rod and gently tap the top with a hammer. The mandrel can be removed by simply wiping the opposite end. - Usage: It is used for stretching all soft precious metals such as silver, gold, copper, etc. Great for carpentry, construction, engineering, jewelry & shaping metal. - Sizes & Dimension: This Rathburn stretcher tool's ring size capacity is 6 or larger, and dimensions with rod in base: approximately 6-1/2". - ⚠️⚠️⚠️⚠️𝐏𝐚𝐲 𝐀𝐭𝐭𝐞𝐧𝐭𝐢𝐨𝐧!:Use only for smooth solid rings with a maximum width of 10 mm. Do not use for rings with stones or very thin rings. Slide the ring onto the stepped collet. Insert the tapered pin. Apply a few very light blows with a hammer. Remove the tapered pin and only then remove the ring by twisting the mandrel. this tool fixture will not expand more than 1 finger size ⚠️⚠️⚠️ ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B07JLSXDBJ | | Best Sellers Rank | #158 in Jewelry Sizers & Mandrels | | Date First Available | December 20, 2016 | | Item Model Number | 448-12S | | Manufacturer | MegaCast | | Product Dimensions | 5.8 x 1.2 x 1.2 inches; 11.68 ounces | ## Images ![Metal Ring Stretcher Rathburn 6-1/2 Inches - Image 1](https://m.media-amazon.com/images/I/51-ieeHOXYL.jpg) ## Questions & Answers **Q: Mine came with no instructions. I watched a youtube video but it is in 1 piece and seems stuck. How do I get it apart?** A: Mine will not come apart . Very frustrated **Q: Well this stretche a rig that has Diamonds in t** A: From my experience it could, but I wouldn't try it. If you're stretching the ring, you're also stretching the mounts that hold the diamonds. For me it wouldn't be woth the risk of possibly losing precious diamonds. **Q: Will this product enlarge a size 11 silver dollar coin ring into a size 12 1/2?** A: it is safest to enlarge by 1 size **Q: What is the ring stretcher made of?** A: All metal construction. The "stretcher" expands when the plunger is slowly hammered in. Use a rubber or plastic head hammer, as the metal will mushroom with a regular hammer and will jam. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works great! *by on Reviewed in the United States February 3, 2025* Bought to try to stretch my wife's wedding rind as the local jewelers wouldn't do it (ring with band).I heated the ring until blood red with my MAP torch (while holding it with tweezers) and used a hammer to strike the wedge-plunger.Left to cool down a bit, and then used a punch from the other side to remove the plunger and release the ring.Took baby steps and tried for fit each time.Took 5 or 6 rounds (check for fit, heat up, place in the tool, expand a little bit, leave to cool) and it fit very well at a bit over 1 size bigger (from 6 to 7+).The ring is about 5 mm wide an d1 mm thick 18K.After stretching it needed some polish because of the torch.Tools used:- MegaCast Metal Ring Stretcher Rathburn 6-1/2 Inches,- MAP torch,- 250 gram hammer,- tweezers,- and a sturdy heat resisting surface (tiled floor, good thing as I dropped the red hot ring once).No damage on ring or the stretcher/plunger and even the laser engraving on the inside of the ring survived.Over all, simple and easy to use tool, I would recommend to anyone willing to try.Just keep in mind not to go overboard as the ring can break. ### ⭐⭐⭐⭐⭐ It worked great for me! *by on Reviewed in the United States August 13, 2024* I was a bit skeptical about purchasing this, but after reading several reviews I decided why not give it a try. My Wedding Ring didn't fit my finger without using soap to put it on and even after getting it on it was tight. I was going to take the ring to a Jewelry, but wasn't sure who. So for about $15 I did it myself. It worked great for me and I don't have a simple band. Mine has 3 small diamonds set in it and that part is wider than the backside of the band. My ring fits great now and I'm happy I went for it! ### ⭐⭐⭐⭐ It was a stretch! *by on Reviewed in the United States March 7, 2023* It was well made and worth the money. I used it to size a gold ring. The item was easy to use and did the job easily. Just take your time and do it slowly until you get to the size you want. ## Frequently Bought Together - MegaCast Metal Ring Stretcher Rathburn 6-1/2 Inches - SATINIOR 8 Pieces Coin Ring Making Balls Monkey Fist Balls Stainless Steel Balls, Assortment of 3/4 Inch, 5/8 Inch, 9/16 Inch, 1/2 Inch, 7/16 Inch, 3/8 Inch, 5/16 Inch and 1/4 Inch - USAReplacementparts 7/16inch Coin Ring Tools Center Punch, Punch a 7/16inch Hole in 4 Different Dollar Coins, Metal Forming Kit Jewelry Making and Metalsmith, USA Made, Golden,Silver (716) --- ## 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.pt/products/95585210-metal-ring-stretcher-rathburn-6-1-2-inches](https://www.desertcart.pt/products/95585210-metal-ring-stretcher-rathburn-6-1-2-inches) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-10-07*