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.

Sizes & Dimension: This Rathburn stretcher tool's ring size capacity is 6 or larger, and dimensions with rod in base: approximately 6-1/2". Usage: It is used for stretching all soft precious metals such as silver, gold, copper, etc. Great for carpentry, construction, engineering, jewelry & shaping metal. 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. 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. 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.

Best Sellers Rank: See Top 100 in Arts, Crafts & Sewing. : B07JLSXDBJ. Manufacturer: MegaCast. Date First Available: December 20, 2016. Item model number: 448-12S. Product Dimensions: 5.8 x 1.2 x 1.2 inches; 11.68 Ounces. Is Discontinued By Manufacturer: No.