{"product_id":"grs-004-735-inside-diameter-ring-holder-20-mandrels","title":"GRS 004-735 Inside Diameter Ring Holder With 20 Mandrels","description":"\u003cp\u003eA ring holder secures a ring at the bench so both hands stay free for engraving and setting. The \u003cstrong\u003eGRS 004-735 Inside Diameter (ID) Ring Holder with 20 Mandrels\u003c\/strong\u003e from Glendo GRS holds the ring from the inside and gives jewelers, engravers, and stone setters unrestricted access to the full circumference. It is a significant upgrade over the original GRS ID Ring Holder: it offers a choice between two distinct holding actions—adjustable tension or firm locking—a capability the original single-tension model did not offer.\u003c\/p\u003e\u003cp\u003eUse the included \u003cstrong\u003estandard cone\u003c\/strong\u003e for adjustable tension, allowing the ring to rotate smoothly during engraving. Switch to the \u003cstrong\u003elocking cone\u003c\/strong\u003e to lock the ring completely rigid, which suits pavé and standard stone setting where zero movement is essential. Both actions live in one tool body, which makes the holder adaptable across bench tasks.\u003c\/p\u003e\u003cp\u003eThis version includes \u003cstrong\u003e2 complete sets of 10 expanding mandrels\u003c\/strong\u003e (20 total), covering a wider size range than the original 7-collet set. Two mandrels of each size are provided, so a backup is on hand at every diameter. The ring holder body is made of \u003cstrong\u003esteel\u003c\/strong\u003e and mounts in a vise or engraving block. It is \u003cstrong\u003enot for use in a BenchMate\u003c\/strong\u003e. Made in the USA.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHolds rings from the inside, providing unrestricted access to the full circumference\u003c\/li\u003e\n\u003cli\u003eChoose between adjustable tension (standard cone) or rigid locking action (locking cone)\u003c\/li\u003e\n\u003cli\u003eIncludes 20 expanding mandrels, 2 sets of 10, covering 13.5mm–22.5mm inside diameters\u003c\/li\u003e\n\u003cli\u003eNew mandrel design covers a wider size range than the original 7-collet style\u003c\/li\u003e\n\u003cli\u003eLonger hex nut included for extending the ring mandrel when extra clearance is needed\u003c\/li\u003e\n\u003cli\u003eSteel body mounts in a vise or engraving block\u003c\/li\u003e\n\u003cli\u003eSuitable for engraving, pavé setting, and standard stone setting\u003c\/li\u003e\n\u003cli\u003eNot for use in a BenchMate\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eMounts in a vise or engraving block. Not for use in a BenchMate.\u003c\/p\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\u003cp\u003eWhat you get:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eRing Holder Body (available separately as 104.754)\u003c\/li\u003e\n\u003cli\u003e20 Expanding Mandrels, 2 each of the following sizes: 13.5mm, 14.5mm, 15.5mm, 16.5mm, 17.5mm, 18.5mm, 19.5mm, 20.5mm, 21.5mm, 22.5mm\u003c\/li\u003e\n\u003cli\u003e2 Standard Cones\u003c\/li\u003e\n\u003cli\u003e2 Locking Cones\u003c\/li\u003e\n\u003cli\u003eDrawbar\u003c\/li\u003e\n\u003cli\u003eDrawbar Knob\u003c\/li\u003e\n\u003cli\u003eHex Nut (extended length for extra clearance)\u003c\/li\u003e\n\u003cli\u003eGRS Hex Wrench\u003c\/li\u003e\n\u003cli\u003eInstructions\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe complete mandrel set is available separately as GRS part \u003cstrong\u003e104.707\u003c\/strong\u003e. The ring holder body alone is available separately as GRS part \u003cstrong\u003e104.754\u003c\/strong\u003e.\u003c\/p\u003e","brand":"Glendo GRS","offers":[{"title":"Default Title","offer_id":43583709216982,"sku":"104.735","price":128.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/grs-004-735-inside-diameter-ring-holder-with-20-mandrels-otto-frei-1.jpg?v=1719956534","url":"https:\/\/www.ottofrei.com\/ja\/products\/grs-004-735-inside-diameter-ring-holder-20-mandrels","provider":"Otto Frei","version":"1.0","type":"link"}