{"product_id":"cylinder-head-porting-straight-cartridge-rolls-3-8-80-grit-box-51","title":"CYLINDER HEAD PORTING STRAIGHT CARTRIDGE ROLLS 3\/8  80 GRIT BOX (50)","description":"\u003cdiv class=\"Y3BBE\" data-sfc-cp=\"\" data-hveid=\"CAEQAA\" data-processed=\"true\"\u003eStraight cartridge rolls for porting are \u003cmark class=\"HxTRcb\" data-processed=\"true\"\u003ebonded abrasive tools, often aluminum oxide, used with a mandrel in a drill for modifying and smoothing internal engine passages (intake\/exhaust ports) to improve airflow\u003c\/mark\u003e, available in various sizes (diameters\/lengths) and grits (coarse to fine) for shaping and polishing cast iron or alloy heads, helping performance. They work by continually exposing new abrasive layers as they wear, ideal for hard-to-reach areas in cylinder heads and manifolds.\u003cspan class=\"uJ19be notranslate\" data-wiz-uids=\"HCinV_f,HCinV_g,HCinV_h\" data-processed=\"true\"\u003e\u003cspan class=\"vKEkVd\" data-animation-atomic=\"\" data-wiz-attrbind=\"class=HCinV_f\/TKHnVd;\" data-processed=\"true\"\u003e \u003cbutton data-amic=\"true\" data-icl-uuid=\"e094147f-5dcf-4878-9f68-08dd6b1abb1d\" aria-label=\"View related links\" class=\"rBl3me\" data-wiz-attrbind=\"disabled=HCinV_f\/C5gNJc;class=HCinV_f\/UpSNec;\" data-ved=\"2ahUKEwjQlO2d5-yRAxUthlYBHeAXMB0Qye0OegQIARAE\" data-processed=\"true\" tabindex=\"0\"\u003e\u003cspan class=\"wiMplc ofC0Ud\" data-processed=\"true\"\u003e\u003csvg fill=\"currentColor\" width=\"12px\" height=\"12px\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M3.9 12c0-1.71 1.39-3.1 3.1-3.1h4V7H7c-2.76 0-5 2.24-5 5s2.24 5 5 5h4v-1.9H7c-1.71 0-3.1-1.39-3.1-3.1zM8 13h8v-2H8v2zm9-6h-4v1.9h4c1.71 0 3.1 1.39 3.1 3.1s-1.39 3.1-3.1 3.1h-4V17h4c2.76 0 5-2.24 5-5s-2.24-5-5-5z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003e\u003c\/button\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"Fsg96\" data-sfc-cp=\"\" data-processed=\"true\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"otQkpb\" aria-level=\"3\" role=\"heading\" data-animation-nesting=\"\" data-sfc-cp=\"\" data-processed=\"true\"\u003eKey Aspects of Straight Cartridge Rolls for Porting:\u003cspan class=\"txxDge notranslate\" data-wiz-uids=\"HCinV_n,HCinV_o,HCinV_p\" data-processed=\"true\"\u003e\u003cspan class=\"vKEkVd\" data-animation-atomic=\"\" data-wiz-attrbind=\"class=HCinV_n\/TKHnVd;\" data-processed=\"true\"\u003e\u003cbutton data-amic=\"true\" data-icl-uuid=\"188de82e-1471-4ffd-a0ff-90aa5aef9f77\" aria-label=\"View related links\" class=\"rBl3me\" data-wiz-attrbind=\"disabled=HCinV_n\/C5gNJc;class=HCinV_n\/UpSNec;\" data-ved=\"2ahUKEwjQlO2d5-yRAxUthlYBHeAXMB0Qye0OegQIAhAA\" data-processed=\"true\" tabindex=\"0\"\u003e\u003cspan class=\"wiMplc ofC0Ud\" data-processed=\"true\"\u003e\u003csvg fill=\"currentColor\" width=\"12px\" height=\"12px\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M3.9 12c0-1.71 1.39-3.1 3.1-3.1h4V7H7c-2.76 0-5 2.24-5 5s2.24 5 5 5h4v-1.9H7c-1.71 0-3.1-1.39-3.1-3.1zM8 13h8v-2H8v2zm9-6h-4v1.9h4c1.71 0 3.1 1.39 3.1 3.1s-1.39 3.1-3.1 3.1h-4V17h4c2.76 0 5-2.24 5-5s-2.24-5-5-5z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003e\u003c\/button\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cul class=\"KsbFXc U6u95\" data-processed=\"true\"\u003e\n\u003cli data-hveid=\"CAMQAA\" data-processed=\"true\"\u003e\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-processed=\"true\"\u003e\u003cspan class=\"Yjhzub\" data-processed=\"true\"\u003ePurpose\u003c\/span\u003e: To remove material from cylinder heads, intake manifolds, and exhaust ports to smooth surfaces, improve airflow (volumetric efficiency), and increase engine performance, throttle response, and horsepower.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-hveid=\"CAMQAQ\" data-processed=\"true\"\u003e\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-processed=\"true\"\u003e\u003cspan class=\"Yjhzub\" data-processed=\"true\"\u003eMaterial\u003c\/span\u003e: Typically made from durable aluminum oxide abrasive cloth on a cotton backing.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-hveid=\"CAMQAg\" data-processed=\"true\"\u003e\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-processed=\"true\"\u003e\u003cspan class=\"Yjhzub\" data-processed=\"true\"\u003eTypes\u003c\/span\u003e: Available as straight or tapered, though straight ones are common for general porting.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-hveid=\"CAMQAw\" data-processed=\"true\"\u003e\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-processed=\"true\"\u003e\u003cspan class=\"Yjhzub\" data-processed=\"true\"\u003eGrits\u003c\/span\u003e: Range from coarse (e.g., 40, 80 grit) for material removal and shaping to fine (e.g., 120, 240 grit) for smoothing and polishing.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-hveid=\"CAMQBA\" data-processed=\"true\"\u003e\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-processed=\"true\"\u003e\u003cspan class=\"Yjhzub\" data-processed=\"true\"\u003eSizes\u003c\/span\u003e: Come in various diameters (e.g., 1\/4\", 3\/8\", 1\/2\") and lengths, often sold in kits with mandrels.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-hveid=\"CAMQBQ\" data-processed=\"true\"\u003e\n\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-processed=\"true\"\u003e\u003cspan class=\"Yjhzub\" data-processed=\"true\"\u003eUsage\u003c\/span\u003e: Mounted on a mandrel (a shaft that fits into a drill), these rolls are used to grind and blend metal in confined spaces, consistent cutting action as layers wear down.\u003c\/span\u003e\u003cspan class=\"uJ19be notranslate\" data-wiz-uids=\"HCinV_19,HCinV_1a,HCinV_1b\" data-processed=\"true\"\u003e\u003cspan class=\"vKEkVd\" data-animation-atomic=\"\" data-wiz-attrbind=\"class=HCinV_19\/TKHnVd;\" data-processed=\"true\"\u003e \u003cbutton data-amic=\"true\" data-icl-uuid=\"2d9a8380-e6cd-4fef-a240-fedae157e96a\" aria-label=\"View related links\" class=\"rBl3me\" data-wiz-attrbind=\"disabled=HCinV_19\/C5gNJc;class=HCinV_19\/UpSNec;\" data-ved=\"2ahUKEwjQlO2d5-yRAxUthlYBHeAXMB0Qye0OegQIAxAG\" data-processed=\"true\" tabindex=\"0\"\u003e\u003cspan class=\"wiMplc ofC0Ud\" data-processed=\"true\"\u003e\u003csvg fill=\"currentColor\" width=\"12px\" height=\"12px\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M3.9 12c0-1.71 1.39-3.1 3.1-3.1h4V7H7c-2.76 0-5 2.24-5 5s2.24 5 5 5h4v-1.9H7c-1.71 0-3.1-1.39-3.1-3.1zM8 13h8v-2H8v2zm9-6h-4v1.9h4c1.71 0 3.1 1.39 3.1 3.1s-1.39 3.1-3.1 3.1h-4V17h4c2.76 0 5-2.24 5-5s-2.24-5-5-5z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003e\u003c\/button\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"Fsg96\" data-sfc-cp=\"\" data-processed=\"true\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"otQkpb\" aria-level=\"3\" role=\"heading\" data-animation-nesting=\"\" data-sfc-cp=\"\" data-processed=\"true\"\u003eBASED IN MELBOURNE SHIPS AUSTRALIA WIDE\u003c\/div\u003e","brand":"Ayross Trading \u0026 Distributing","offers":[{"title":"Default Title","offer_id":53103310831776,"sku":"SCR-375-80","price":85.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0691\/2560\/3488\/files\/s-l140_17.webp?v=1765748725","url":"https:\/\/putavd-mn.myshopify.com\/products\/cylinder-head-porting-straight-cartridge-rolls-3-8-80-grit-box-51","provider":"Ayross Trading \u0026 Distributing","version":"1.0","type":"link"}