{"product_id":"ferris-file-a-wax-ring-tube-t-875-7-8-round-center-hole","title":"Ferris File-A-Wax Ring Tube T-875 7\/8\" Round Center Hole","description":"\u003cp\u003eFerris File-A-Wax Style T-875 ring tubes are the carving wax of choice for master jewelers and metalsmiths working in the lost wax casting tradition. Each tube measures 6\" (152mm) in length with a 7\/8\" outside diameter and a 5\/8\" (15.9mm) centered round hole — ideal for carving rings, cuff links, pendants, medallions, and more. These waxes are easily sawed, carved, drilled, milled, and turned on a lathe, and they burn out cleanly from investment molds without leaving residue. They will stand up to rough handling and will not soften in the hand during carving.\u003c\/p\u003e\u003cp\u003eAvailable in five color-coded hardness formulas to suit every carving technique — from highly flexible thin-wall sections to CNC lathe work — Ferris File-A-Wax ring tubes give craftspeople precise control over the model-making process.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eStyle T-875 ring tube format with centered round hole for ring blanks\u003c\/li\u003e\n\u003cli\u003eFive color-coded hardness formulas: Blue (Soft), Purple (Medium), Turquoise (Medium Hard), Green (Hard), and Gold (Harder\/Wolf Wax)\u003c\/li\u003e\n\u003cli\u003eBlue formula bends 90° at 1\/8\" thickness — ideal for extreme thin-wall sections\u003c\/li\u003e\n\u003cli\u003ePurple formula offers some flexibility for general-purpose hand carving\u003c\/li\u003e\n\u003cli\u003eTurquoise formula is medium hard with excellent milling performance\u003c\/li\u003e\n\u003cli\u003eGreen formula is fully rigid for highly intricate, detailed carving\u003c\/li\u003e\n\u003cli\u003eGold formula (also called Wolf Wax) is optimized for carving and CNC lathe work\u003c\/li\u003e\n\u003cli\u003eEasily sawed, carved, drilled, milled, and lathe-turned\u003c\/li\u003e\n\u003cli\u003eBurns out cleanly from investment molds\u003c\/li\u003e\n\u003cli\u003eWill not soften in the hand during carving\u003c\/li\u003e\n\u003cli\u003eStands up to rough handling\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eStyle\u003c\/th\u003e\n\u003ctd\u003eT-875\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003ctd\u003e6\" (152mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutside Diameter\u003c\/th\u003e\n\u003ctd\u003e7\/8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCenter Hole\u003c\/th\u003e\n\u003ctd\u003e5\/8\" (15.9mm) round, centered\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eApproximate Melting Point\u003c\/th\u003e\n\u003ctd\u003e240°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003eLost wax casting models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBurnout Method\u003c\/th\u003e\n\u003ctd\u003eMust be burned out of investment molds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSteam De-Waxer Compatible\u003c\/th\u003e\n\u003ctd\u003eNo — not for use in steam de-waxers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eAvailable Options\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eColor\u003c\/th\u003e\n\u003cth\u003eHardness\u003c\/th\u003e\n\u003cth\u003eShore D \/ Flexibility \/ Hand Carve \/ Milling\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e121.178\u003c\/td\u003e\n\u003ctd\u003eTurquoise\u003c\/td\u003e\n\u003ctd\u003eMedium Hard\u003c\/td\u003e\n\u003ctd\u003e56 \/ Fair \/ Excellent \/ Excellent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e121.212\u003c\/td\u003e\n\u003ctd\u003eGold (Wolf Wax)\u003c\/td\u003e\n\u003ctd\u003eHarder\u003c\/td\u003e\n\u003ctd\u003e59 \/ Good \/ Good \/ Excellent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e121.358\u003c\/td\u003e\n\u003ctd\u003ePurple\u003c\/td\u003e\n\u003ctd\u003eMedium\u003c\/td\u003e\n\u003ctd\u003e55 \/ Good \/ Excellent \/ Fair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e121.360\u003c\/td\u003e\n\u003ctd\u003eBlue\u003c\/td\u003e\n\u003ctd\u003eSoft\u003c\/td\u003e\n\u003ctd\u003e52 \/ Excellent \/ Good \/ Poor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e121.362\u003c\/td\u003e\n\u003ctd\u003eGreen\u003c\/td\u003e\n\u003ctd\u003eHard\u003c\/td\u003e\n\u003ctd\u003e57 \/ Fair \/ Fair \/ Good\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMust be burned out of investment molds — not compatible with steam de-waxers.\u003c\/li\u003e\n\u003cli\u003eGold formula is also known as Wolf Wax and is specifically suited for CNC lathe applications.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ferris","offers":[{"title":"Turquoise-Medium Hard","offer_id":43696700031190,"sku":"121.178","price":8.0,"currency_code":"USD","in_stock":true},{"title":"Gold-Harder","offer_id":43696700063958,"sku":"121.212","price":14.0,"currency_code":"USD","in_stock":false},{"title":"Purple-Medium","offer_id":43696699965654,"sku":"121.358","price":8.0,"currency_code":"USD","in_stock":true},{"title":"Blue-Soft","offer_id":43696699932886,"sku":"121.360","price":8.0,"currency_code":"USD","in_stock":true},{"title":"Green-Hard","offer_id":43696699998422,"sku":"121.362","price":8.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/ferris-file-a-wax-ring-tube-t-875-78-round-center-hole-otto-frei.jpg?v=1719955459","url":"https:\/\/www.ottofrei.com\/it\/products\/ferris-file-a-wax-ring-tube-t-875-7-8-round-center-hole","provider":"Otto Frei","version":"1.0","type":"link"}