{"product_id":"insize-3221-tubular-inside-micrometers","title":"Insize 3221 Tubular Inside Micrometers","description":"\u003ch2\u003eInsize 3221 Tubular Inside Micrometers\u003c\/h2\u003e\n\u003cp\u003eThe Insize 3221 Tubular Inside Micrometer series is designed for precision measurement of large internal diameters, using a micrometer head paired with extension rods to reach across a wide span of bore sizes. Rather than requiring a separate tool for every size, the 3221 series lets you add extension rods to extend the measuring range, with models covering everything from 1\"-2\" up to 8\"-40\". Each unit offers .001\" graduation and is well suited for shop floor inspection, CNC machining support, receiving inspection, and general industrial measurement work. Optional accessories, including a setting ring, gage block accessory, cylinder gage block, and caliper\/height gage checker, are available to round out your measurement setup for specific applications.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eExtension rod system allows one micrometer head to cover a wide range of large bore diameters\u003c\/li\u003e\n\u003cli\u003e.001\" graduation for precise, easy-to-read measurements\u003c\/li\u003e\n\u003cli\u003eMeasuring head travel of .25\" to 1\" depending on model\u003c\/li\u003e\n\u003cli\u003eSuitable for shop floor inspection, CNC machining support, and receiving inspection\u003c\/li\u003e\n\u003cli\u003eCompatible with optional setting ring, gage block accessory, cylinder gage block, and caliper\/height gage checker\u003c\/li\u003e\n\u003cli\u003eAvailable in ranges from 1\"-2\" up to 8\"-40\" to fit a wide variety of bore sizes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable data-sheets-baot=\"1\" data-sheets-root=\"1\" border=\"1\" dir=\"ltr\" cellpadding=\"0\" cellspacing=\"0\" xmlns=\"http:\/\/www.w3.org\/1999\/xhtml\"\u003e\n\u003ccolgroup\u003e \u003ccol width=\"234\"\u003e \u003ccol width=\"885\"\u003e \u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecification\u003c\/td\u003e\n\u003ctd\u003eDetail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasurement Ranges Available\u003c\/td\u003e\n\u003ctd\u003e1\"-1.25\", 1\"-2\", 2\"-2.5\", 2\"-8\", 2\"-12\", 8\"-9\", 8\"-20\", 8\"-40\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGraduation\u003c\/td\u003e\n\u003ctd\u003e.001\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e[.0003 + .00005(L\/2)]\", where L = maximum measuring length (inch)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMicrometer Head Travel\u003c\/td\u003e\n\u003ctd\u003e.25\" to 1\" depending on model\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExtension Rods Included\u003c\/td\u003e\n\u003ctd\u003e0 to 10 pieces depending on range (e.g., 2 rods for 3221-2; 10 rods for 3221-12)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Accessories\u003c\/td\u003e\n\u003ctd\u003eSetting ring (P\/N 6313), gage block accessory (P\/N 6881), cylinder gage block (P\/N 4001), caliper\/height gage checker (P\/N 6884) - sold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eItems Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eInsize 3221 tubular inside micrometer head in the selected range\u003c\/li\u003e\n\u003cli\u003eExtension rods (quantity varies by range)\u003c\/li\u003e\n\u003cli\u003eFitted storage case\u003c\/li\u003e\n\u003cli\u003eInstruction manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0890\/6991\/2348\/files\/Insize_3221_Tubular_Inside_Micrometers_Data_Sheet.pdf?v=1784564101\" title=\"Insize 3221 Tubular Inside Micrometers Data Sheet\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0890\/6991\/2348\/files\/PDF_image_100x100.png?v=1756409173\" alt=\"INSIZE ISHW-L20B Webster Hardness Tester Manual\"\u003eInsize 3221 Tubular Inside Micrometers Data Sheet\u003c\/a\u003e\u003c\/p\u003e","brand":"Insize","offers":[{"title":"Default Title","offer_id":53480195588380,"sku":"3221-40","price":1279.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0890\/6991\/2348\/files\/Insize_3221_Tubular_Inside_Micrometers_Front_View.jpg?v=1784564134","url":"https:\/\/precisionengineeringsupply.com\/products\/insize-3221-tubular-inside-micrometers","provider":"Precision Engineering Supply","version":"1.0","type":"link"}