{"product_id":"generic-rs-100-8","title":"RS-100-8 4-Inch Octagonal HSS Rotary Blade for Speedway SP100DD \u0026 4\" Handheld Cutters - Generic High Speed Steel Replacement Knife","description":"\u003cp\u003eThe \u003cstrong\u003eRS-100-8\u003c\/strong\u003e (marked \u003cstrong\u003eRS-100(8)\u003c\/strong\u003e) is a 4-inch (100 mm) \u003cstrong\u003eoctagonal high-speed-steel (HSS) rotary blade\u003c\/strong\u003e — a generic aftermarket replacement cutting knife for 4-inch handheld rotary cloth cutters. The eight-sided blade profile is engineered to shear cleanly through stacked fabric plies, and the hardened HSS steel holds a sharp edge far longer than standard carbon-steel blades, resisting the heat build-up that dulls lesser knives on long production runs.\u003c\/p\u003e\n\u003cp\u003eThis is a direct \u003cstrong\u003edrop-in replacement blade\u003c\/strong\u003e: the center mounting hole with its four-notch drive pattern and two locating pin holes matches the standard 4-inch handheld cutter mount, so it seats and locks without modification.\u003c\/p\u003e\n\n\u003ch2\u003eMachine Compatibility — Available at Supra Sewing\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSPEEDWAY SP100DD\u003c\/strong\u003e — 4-Inch Direct Drive Servo Motor Cutting Machine\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible Cutters\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eSpeedway SP100DD and other 4-inch (100 mm) handheld rotary cloth cutters\u003c\/li\u003e\n  \u003cli\u003eStandard 4-inch octagonal-blade rotary cutter platforms using the RS-100 \/ RS-100(8) blade format\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCross-Reference\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eRS-100-8\u003c\/li\u003e\n  \u003cli\u003eRS-100(8)\u003c\/li\u003e\n  \u003cli\u003eRSD-100\u003c\/li\u003e\n  \u003cli\u003e4\" Octagonal HSS Rotary Blade\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRS-100-8 \/ RS-100(8)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRotary Cutting Blade (Knife)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBlade Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4\" (100 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBlade Shape\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOctagonal (8-sided)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHSS — High Speed Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEdge\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBeveled perimeter cutting edge\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMount\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCenter hole with 4-notch drive pattern + 2 locating pin holes\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4-inch handheld rotary cutters (incl. Speedway SP100DD)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType Class\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGeneric Aftermarket Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eIdeal For\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eReplacing a worn, chipped, or dull blade on a 4-inch handheld rotary cutter\u003c\/li\u003e\n  \u003cli\u003eKeeping a spare cutting edge on hand for production downtime\u003c\/li\u003e\n  \u003cli\u003eCutting stacked plies of woven and knit fabric, and light-to-medium materials\u003c\/li\u003e\n  \u003cli\u003eGarment, upholstery, and general textile cutting shops running 4-inch rotary cutters\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GENERIC","offers":[{"title":"Default","offer_id":52349240967470,"sku":"RS-100-8","price":18.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/1514\/8334\/files\/RS100_8.png?v=1784844216","url":"https:\/\/suprasewing.com\/products\/generic-rs-100-8","provider":"Supra Sewing Online, Llc","version":"1.0","type":"link"}