{"id":270362,"date":"2026-05-21T20:35:17","date_gmt":"2026-05-21T20:35:17","guid":{"rendered":"https:\/\/360digitizingsolutions.com\/shop\/product\/upper-knife-blade-for-merrow-overlock-sewing-machine-6-90\/"},"modified":"2026-09-14T07:52:45","modified_gmt":"2026-09-14T07:52:45","slug":"upper-knife-blade-6-90-for-merrow-overlock-sewing-machine-high-quality-industrial-cutting-blade-replacement-part","status":"publish","type":"product","link":"https:\/\/360digitizingsolutions.com\/shop\/product\/upper-knife-blade-6-90-for-merrow-overlock-sewing-machine-high-quality-industrial-cutting-blade-replacement-part\/","title":{"rendered":"Merrow #6-90 Upper Knife Blade for Merrow Overlock Sewing Machines"},"content":{"rendered":"<p>Are dull or worn knife blades slowing down your Merrow overlock <a href=\"https:\/\/360digitizingsolutions.com\/shop\/?s=Machine&#038;post_type=product&#038;product_cat=0\" target='_blank' >machine<\/a>, leading to frayed edges, inconsistent cuts, and frustrating rework? Subpar trimming doesn&#8217;t just impact the aesthetics of your <a href=\"https:\/\/360digitizingsolutions.com\/\" target='_blank' >embroidery<\/a> and garment projects; it can halt production, damage valuable <a href=\"https:\/\/360digitizingsolutions.com\/shop\/?s=Fabric&#038;post_type=product&#038;product_cat=0\" target='_blank' >fabric<\/a>, and ultimately cost your business time and revenue. Don&#8217;t let a failing blade compromise your professional finish or <a href=\"https:\/\/360digitizingsolutions.com\/shop\/?s=Machine&#038;post_type=product&#038;product_cat=0\" target='_blank' >machine<\/a> efficiency.<\/p>\n<h3>Uninterrupted Precision for Professional Finishes<\/h3>\n<p>The #6-90 Upper Knife Blade is the critical component responsible for precisely trimming excess <a href=\"https:\/\/360digitizingsolutions.com\/shop\/?s=Fabric&#038;post_type=product&#038;product_cat=0\" target='_blank' >fabric<\/a> during the overlock stitching process. Working in perfect synchronization with the lower knife, it ensures a clean, sharp cut right at the seam line. This precision is vital for creating strong, neat, and professional seam finishes that resist fraying and maintain garment integrity. Manufactured from durable, high-strength industrial steel, this blade offers exceptional sharpness, superior wear resistance, and reliable performance even under continuous, high-speed operation. Its robust design is built to withstand the rigorous demands of industrial environments, ensuring your <a href=\"https:\/\/360digitizingsolutions.com\/shop\/?s=Machine&#038;post_type=product&#038;product_cat=0\" target='_blank' >machine<\/a> delivers consistent, high-quality results project after project.<\/p>\n<h3>Solve Common Production Challenges<\/h3>\n<p>This #6-90 Upper Knife Blade is an indispensable replacement part for maintaining peak performance in:<\/p>\n<ul>\n<li><strong>Merrow Overlock Sewing Machines:<\/strong> Specifically designed to restore optimal cutting function.<\/li>\n<li><strong>Garment Factories:<\/strong> Ensures efficient and precise trimming for high-volume clothing production.<\/li>\n<li><strong>Textile Workshops:<\/strong> Ideal for achieving professional finishes on various <a href=\"https:\/\/360digitizingsolutions.com\/shop\/?s=Fabric&#038;post_type=product&#038;product_cat=0\" target='_blank' >fabric<\/a> types.<\/li>\n<li><strong>Industrial Sewing Units:<\/strong> Supports continuous operation and demanding production schedules.<\/li>\n<li><strong>Preventing <a href=\"https:\/\/360digitizingsolutions.com\/shop\/?s=Fabric&#038;post_type=product&#038;product_cat=0\" target='_blank' >Fabric<\/a> Fraying:<\/strong> Delivers clean cuts that seal edges effectively.<\/li>\n<li><strong>Achieving Smooth, Even Seams:<\/strong> Critical for high-quality apparel and embroidered items.<\/li>\n<\/ul>\n<h3>Key Specifications<\/h3>\n<ul>\n<li><strong>Part Number:<\/strong> #6-90<\/li>\n<li><strong>Type:<\/strong> Upper Knife Cutting Blade<\/li>\n<li><strong>Material:<\/strong> Durable Industrial-Grade Steel<\/li>\n<li><strong>Compatibility:<\/strong> Merrow Overlock Sewing Machines<\/li>\n<li><strong>Function:<\/strong> Ensures precise <a href=\"https:\/\/360digitizingsolutions.com\/shop\/?s=Fabric&#038;post_type=product&#038;product_cat=0\" target='_blank' >fabric<\/a> trimming and edge finishing<\/li>\n<li><strong>Features:<\/strong> Long-lasting sharpness and wear resistance<\/li>\n<\/ul>\n<p>This #6-90 Upper Knife Blade is designed for Merrow Overlock Sewing Machines. We advise all buyers to confirm compatibility with their specific <a href=\"https:\/\/360digitizingsolutions.com\/shop\/?s=Machine&#038;post_type=product&#038;product_cat=0\" target='_blank' >machine<\/a> model before ordering. Not sure? Contact us with your <a href=\"https:\/\/360digitizingsolutions.com\/shop\/?s=Machine&#038;post_type=product&#038;product_cat=0\" target='_blank' >machine<\/a> model, and our expert team will gladly confirm the correct fit for you.<\/p>\n<h3>Confidence in Every Cut, Guaranteed<\/h3>\n<p>At 360 Digitizing Shop, we understand that precision and reliability are non-negotiable. That&#8217;s why every #6-90 Upper Knife Blade undergoes rigorous function-testing before it leaves our facility, ensuring you receive a perfectly performing unit every time. We never ship defective items. In the rare instance a defective product arrives, your purchase is fully protected: we guarantee a refund within 4 days under our buyer protection policy, so you can invest in your business with complete peace of mind.<\/p>\n<h3>Frequently Asked Questions<\/h3>\n<p><strong>What is the primary function of the #6-90 Upper Knife Blade?<\/strong><br \/>Its primary function is to precisely trim excess <a href=\"https:\/\/360digitizingsolutions.com\/shop\/?s=Fabric&#038;post_type=product&#038;product_cat=0\" target='_blank' >fabric<\/a> during the overlock stitching process, ensuring clean, sharp edges and professional seam finishes.<\/p>\n<p><strong>Which machines is the #6-90 Upper Knife Blade compatible with?<\/strong><br \/>This blade is specifically designed for use with Merrow Overlock Sewing Machines.<\/p>\n<p><strong>What material is this upper knife blade made from?<\/strong><br \/>The #6-90 Upper Knife Blade is manufactured from durable, high-strength industrial-grade steel for long-lasting sharpness and wear resistance.<\/p>\n<p><strong>How does 360 Digitizing Shop ensure the quality of this blade?<\/strong><br \/>Every #6-90 Upper Knife Blade is function-tested before shipping to ensure it performs perfectly. We guarantee that no defective units are sent.<\/p>\n<p><strong>What should I do if I am unsure about the compatibility of this blade with my <a href=\"https:\/\/360digitizingsolutions.com\/shop\/?s=Machine&#038;post_type=product&#038;product_cat=0\" target='_blank' >machine<\/a>?<\/strong><br \/>We recommend contacting us with your specific Merrow <a href=\"https:\/\/360digitizingsolutions.com\/shop\/?s=Machine&#038;post_type=product&#038;product_cat=0\" target='_blank' >machine<\/a> model number. Our expert team will help confirm compatibility before you place your order.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Restore flawless <a href=\"https:\/\/360digitizingsolutions.com\/shop\/?s=Fabric&#038;post_type=product&#038;product_cat=0\" target='_blank' >fabric<\/a> trimming and achieve consistently clean, professional edges on your Merrow Overlock Sewing <a href=\"https:\/\/360digitizingsolutions.com\/shop\/?s=Machine&#038;post_type=product&#038;product_cat=0\" target='_blank' >Machine<\/a> with the #6-90 Upper Knife Blade. Engineered from high-strength industrial steel, this essential replacement ensures reliable, precise cutting performance for all your overlock projects, preventing fraying and enhancing seam quality.<\/p>\n","protected":false},"featured_media":270693,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[504,18388,97],"product_tag":[40358,40366,21493,40362,40361,19407,40359,40363,40103,40364,38995,40360,21206,40365,40104],"class_list":["post-270362","product","type-product","status-publish","has-post-thumbnail","product_cat-embroidery-machine-accessories","product_cat-embroidery-machine-spare-parts","product_cat-embroidery-machines","product_tag-6-90","product_tag-cutting-blade","product_tag-embroidery-parts","product_tag-fabric-trimming","product_tag-industrial-knife","product_tag-machine-maintenance","product_tag-merrow-knife","product_tag-merrow-parts","product_tag-overlock-knife","product_tag-overlock-machine","product_tag-replacement-blade","product_tag-sewing-machine-blade","product_tag-sewing-machine-parts","product_tag-steel-blade","product_tag-upper-knife","first","instock","sale","taxable","shipping-taxable","purchasable","product-type-simple"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Merrow #6-90 Upper Knife Blade for Merrow Overlock Sewing Machines - 360 Digitizing Shop<\/title>\n<meta name=\"description\" content=\"Restore precise fabric trimming on your Merrow Overlock Sewing Machine with the #6-90 Upper Knife Blade. Durable industrial steel ensures clean edges and professional seam finishing for consistent results.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/360digitizingsolutions.com\/shop\/product\/upper-knife-blade-6-90-for-merrow-overlock-sewing-machine-high-quality-industrial-cutting-blade-replacement-part\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Merrow #6-90 Upper Knife Blade for Merrow Overlock Sewing Machines - 360 Digitizing Shop\" \/>\n<meta property=\"og:description\" content=\"Restore precise fabric trimming on your Merrow Overlock Sewing Machine with the #6-90 Upper Knife Blade. Durable industrial steel ensures clean edges and professional seam finishing for consistent results.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/360digitizingsolutions.com\/shop\/product\/upper-knife-blade-6-90-for-merrow-overlock-sewing-machine-high-quality-industrial-cutting-blade-replacement-part\/\" \/>\n<meta property=\"og:site_name\" content=\"360 Digitizing Shop\" \/>\n<meta property=\"article:modified_time\" content=\"2026-09-14T07:52:45+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/360digitizingsolutions.com\/shop\/wp-content\/uploads\/2026\/06\/270362-49f754.jpeg\" \/>\n\t<meta property=\"og:image:width\" content=\"1000\" \/>\n\t<meta property=\"og:image:height\" content=\"1000\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/360digitizingsolutions.com\\\/shop\\\/product\\\/upper-knife-blade-6-90-for-merrow-overlock-sewing-machine-high-quality-industrial-cutting-blade-replacement-part\\\/\",\"url\":\"https:\\\/\\\/360digitizingsolutions.com\\\/shop\\\/product\\\/upper-knife-blade-6-90-for-merrow-overlock-sewing-machine-high-quality-industrial-cutting-blade-replacement-part\\\/\",\"name\":\"Merrow #6-90 Upper Knife Blade for Merrow Overlock Sewing Machines - 360 Digitizing Shop\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/360digitizingsolutions.com\\\/shop\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/360digitizingsolutions.com\\\/shop\\\/product\\\/upper-knife-blade-6-90-for-merrow-overlock-sewing-machine-high-quality-industrial-cutting-blade-replacement-part\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/360digitizingsolutions.com\\\/shop\\\/product\\\/upper-knife-blade-6-90-for-merrow-overlock-sewing-machine-high-quality-industrial-cutting-blade-replacement-part\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/360digitizingsolutions.com\\\/shop\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/270362-49f754.jpeg\",\"datePublished\":\"2026-05-21T20:35:17+00:00\",\"dateModified\":\"2026-09-14T07:52:45+00:00\",\"description\":\"Restore precise fabric trimming on your Merrow Overlock Sewing Machine with the #6-90 Upper Knife Blade. 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