{"product_id":"juki-b2702047m00a-buttonhole-knife-5-8","title":"JUKI B2702047M00A Buttonhole Knife 5\/8","description":"\u003ch2\u003eJUKI B2702047M00A Buttonhole Knife 5\/8\u003c\/h2\u003e\n\u003cp\u003eJUKI spare part B2702047M00A: Buttonhole Knife 5\/8. This is a cutting knife of the machine. In the official JUKI parts list it appears for LBH, AC and ACF series machines. It replaces the earlier JUKI part number B2702047M00.\u003c\/p\u003e\n\u003cp\u003eKnives cut the thread, trim the fabric edge on overlock and similar machines, or cut the slit of a buttonhole. They work as a pair: a moving knife against a fixed (counter) knife, an upper knife against a lower knife on an overlock machine, or a buttonhole knife against its cutting block. The cut is clean only when both edges are sharp and meet with light pressure, so knives are regular wear items.\u003c\/p\u003e\n\u003ch3\u003eDetails\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eJUKI part number: \u003cstrong\u003eB2702047M00A\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003ePart name in the JUKI catalog: Knife 5\/8\u003c\/li\u003e\n\u003cli\u003eType: Knives\u003c\/li\u003e\n\u003cli\u003eSize mark in the JUKI name: 5\/8\u003c\/li\u003e\n\u003cli\u003eReplaces the earlier part number B2702047M00\u003c\/li\u003e\n\u003cli\u003eListed in 12 model groups of the official JUKI parts list\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFits these JUKI machines\u003c\/h3\u003e\n\u003cp\u003ePart B2702047M00A is used on these JUKI machines: LBH-1790S; LBH-1790 Series; LBH-1790A\/LBH-1795A; LBH-1796A; LBH-1790AN,LBH-1795AN; LBH-1796AN; LBH-781\/LBH-782\/LBH-783\/LBH-784\/LBH-781-K\/LBH-782-K\/LBH-783-K\/LBH-784-K; LBH-791NS\/LBH-791NS-1 Series; LBH-1700 Series; AC-172N-1790AN; AC-172N-1790; ACF-172-1790.\u003c\/p\u003e\n\u003cp\u003eThe list follows the official JUKI WebPartsList. Machine names are written the way JUKI writes them; one entry can cover several related models.\u003c\/p\u003e\n\u003ch3\u003eWhen to replace it\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThreads are not cut cleanly or are left hanging\u003c\/li\u003e\n\u003cli\u003eThe fabric edge frays or is cut unevenly\u003c\/li\u003e\n\u003cli\u003eThere are chips or nicks along the cutting edge\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhen you replace one knife, check the partner (the fixed or lower knife, or the cutting block on a buttonhole machine). If its edge is chipped, rounded or burred, replace both. Set the knife pressure and timing as the JUKI Engineer's Manual for your model describes. Knife edges are very sharp, so handle them with care. Switch the machine off and unplug it before you start, and turn the handwheel by hand through a full stitch before the first run.\u003c\/p\u003e\n\u003ch3\u003eChoosing the right part\u003c\/h3\u003e\n\u003cp\u003eKnives are specific to the machine and its trimmer or overlock mechanism, and many are handed (left or right, upper or lower). On buttonhole machines the size in the name, for example 5\/8, is the buttonhole length the knife cuts.\u003c\/p\u003e\n\u003ch3\u003eMore JUKI parts for the same machines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/es\/products\/juki-40009148-bobbin\"\u003eJUKI 40009148 Bobbin\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/es\/products\/juki-13729066-hook-complete\"\u003eJUKI 13729066 Hook Complete\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/es\/products\/juki-40004311-bt-trimmer\"\u003eJUKI 40004311 BT Trimmer\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/es\/products\/juki-13727102-stopper\"\u003eJUKI 13727102 Stopper\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/es\/products\/juki-b1552781000a-work-clamp-check\"\u003eJUKI B1552781000A Work Clamp Check\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eQuestions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eShould I replace both knives at once?\u003c\/strong\u003e\u003cbr\u003eOften, yes. The moving (upper) knife usually wears first, but a new knife against a chipped or rounded partner cuts poorly and wears faster. If the partner's edge is still clean and sharp, replacing one knife is fine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eI have the old number B2702047M00. Is this the right part?\u003c\/strong\u003e\u003cbr\u003eYes. JUKI lists B2702047M00A as the replacement for B2702047M00.\u003c\/p\u003e","brand":"PRIZZI SEWING MACHINE CO.","offers":[{"title":"Default Title","offer_id":50679090970789,"sku":"JUK-B2702047M00A","price":2.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/7593\/5397\/files\/knife_v2.png?v=1792234173","url":"https:\/\/prizzisewing.com\/es\/products\/juki-b2702047m00a-buttonhole-knife-5-8","provider":"PRIZZI SEWING MACHINE CO.","version":"1.0","type":"link"}