{"product_id":"half-round-concave-jaw-bending-pliers-6-1-4-inch-mirror-polished-carbon-steel","title":"Otto Frei 6-1\/4\" Half-Round\/Concave Jaw Mirror Polished Bending Pliers","description":"\u003cp\u003eThe \u003cstrong\u003eOtto Frei 6-1\/4\" (160mm) Half-Round\/Concave Jaw Mirror Polished Bending Pliers\u003c\/strong\u003e are precision German-made tools designed for forming bezels, bending wire, and shaping thick ring shanks. One jaw is half-round (7mm), and the opposing jaw is concave (9mm) — slightly larger so that when the jaws close, the curve of the half-round jaw seats precisely into the concave jaw for controlled, consistent bends.\u003c\/p\u003e\u003cp\u003eConstructed from carbon steel, these pliers are significantly stronger than stainless steel alternatives. Carbon steel resists bending and distortion under repeated use, making it well suited to demanding bench work. Because of this rigidity, the pliers can fracture if subjected to hard impacts such as dropping or stresses beyond their design limits, though such breakage is uncommon. Carbon steel will develop a natural patina over time and may surface-rust if left unprotected. Rust can be removed with light sandpaper. Wipe the jaws and body with a lightly oiled rag after use or store under one to maintain the tool and slow oxidation.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eAlso available in a lighter 5-1\/8\" size — see part number 146.341. Note that the 6-1\/4\" pliers are considerably larger overall than the 5-1\/8\" model.\u003c\/em\u003e\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHalf-round jaw (7mm) paired with a slightly wider concave jaw (9mm) for matched, precise bends\u003c\/li\u003e\n\u003cli\u003eIdeal for forming bezels, shaping wire, and bending thick ring shanks\u003c\/li\u003e\n\u003cli\u003eCarbon steel construction — stronger and more rigid than stainless steel\u003c\/li\u003e\n\u003cli\u003eMirror-polished finish that seasons to a natural patina over time\u003c\/li\u003e\n\u003cli\u003eMade in Germany to professional jeweler standards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eOverall Length\u003c\/th\u003e\n\u003ctd\u003e6-1\/4\" (160mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eJaw Style\u003c\/th\u003e\n\u003ctd\u003eHalf-round \/ Concave\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHalf-Round Jaw Width\u003c\/th\u003e\n\u003ctd\u003e7mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eConcave Jaw Width\u003c\/th\u003e\n\u003ctd\u003e9mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eCarbon steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eMirror polished\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of Origin\u003c\/th\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCarbon steel may rust if not maintained — wipe with an oily rag after use and store protected from moisture.\u003c\/li\u003e\n\u003cli\u003eAlthough extremely durable under normal use, carbon steel pliers can fracture if dropped or stressed beyond their limits.\u003c\/li\u003e\n\u003cli\u003eA smaller 5-1\/8\" version is available under part number 146.341.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43584279937238,"sku":"146.343","price":52.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/otto-frei-6-14-half-roundconcave-jaw-mirror-polished-bending-pliers-otto-frei-1.jpg?v=1719956298","url":"https:\/\/www.ottofrei.com\/products\/half-round-concave-jaw-bending-pliers-6-1-4-inch-mirror-polished-carbon-steel","provider":"Otto Frei","version":"1.0","type":"link"}