{"product_id":"insize-1177-digital-back-jaw-centerline-caliper-hole-center-distance-measurement","title":"INSIZE 1177 Digital Back-Jaw Centerline Caliper | Hole Center Distance Measurement","description":"\u003ch1\u003eINSIZE 1177 Digital Back-Jaw Centerline Caliper | 20–1500mm\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003eINSIZE 1177 Digital Back-Jaw Centerline Caliper\u003c\/strong\u003e is a specialized precision measuring instrument designed for measuring \u003cstrong\u003ecenter-to-center distances between holes\u003c\/strong\u003e on machined, fabricated, and industrial components. The unique back-jaw design allows the measuring points to engage holes directly, making centerline measurements easier to perform than with a conventional digital caliper.\u003c\/p\u003e\n\u003cp\u003eCRB Supply offers the 1177 series in \u003cstrong\u003e500 mm, 1000 mm, and 1500 mm capacities\u003c\/strong\u003e, providing options for both standard and large-component inspection.\u003c\/p\u003e\n\u003cp\u003eWith digital measurement, fine resolution, and stainless-steel construction, the 1177 is well suited for machine shops, fabrication facilities, tooling departments, and quality-control environments.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eSpecialized \u003cstrong\u003eback-jaw design\u003c\/strong\u003e for centerline measurements\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDesigned for measuring \u003cstrong\u003ehole-to-hole center distances\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSuitable for holes positioned in the \u003cstrong\u003esame or offset planes\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStainless-steel construction\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDigital LCD display\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e0.01 mm \/ 0.0005\" resolution\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMetric\/inch conversion\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePreset function\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAutomatic power-off\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMove-activated digital unit\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCR2032 battery\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eData-output interface\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAvailable in measuring capacities up to \u003cstrong\u003e1500 mm \/ 60\"\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eChoose the Right Measuring Range\u003c\/h2\u003e\n\u003cp\u003eThe 1177 series is available in three configurations through CRB Supply:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth align=\"right\"\u003eMeasuring Range\u003c\/th\u003e\n\u003cth align=\"right\"\u003eAccuracy\u003c\/th\u003e\n\u003cth align=\"right\"\u003eResolution\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e1177-500\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e20–500 mm \/ 0.8–20\"\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e±0.10 mm\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e0.01 mm \/ 0.0005\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e1177-1000\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e30–1000 mm \/ 1.2–40\"\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e±0.12 mm\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e0.01 mm \/ 0.0005\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e1177-1500\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e30–1500 mm \/ 1.2–60\"\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e±0.15 mm\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e0.01 mm \/ 0.0005\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eDesigned for Hole Centerline Inspection\u003c\/h2\u003e\n\u003cp\u003eTraditional digital calipers are primarily intended for outside, inside, depth, and step measurements. Determining the center distance between two holes can require additional calculations or specialized measuring equipment.\u003c\/p\u003e\n\u003cp\u003eThe INSIZE 1177 is specifically designed around this inspection requirement.\u003c\/p\u003e\n\u003cp\u003eThe specialized back jaws allow the operator to position the measuring points at the applicable holes and directly obtain the center-to-center dimension. The design can also be used when holes are located in \u003cstrong\u003edifferent planes\u003c\/strong\u003e, providing additional flexibility for inspecting complex components.\u003c\/p\u003e\n\u003ch2\u003eLarge-Format Dimensional Inspection\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003e1177-1000\u003c\/strong\u003e and \u003cstrong\u003e1177-1500\u003c\/strong\u003e extend the capabilities of the 1177 series to substantially larger components.\u003c\/p\u003e\n\u003cp\u003eThese larger-capacity models are useful when inspecting:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eLarge machined plates\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFabricated structures\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIndustrial frames\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLarge brackets\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMachine components\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFixtures and tooling\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWelded assemblies\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAutomotive components\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStructural components\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLarge mounting patterns\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe 1177-500 provides a 500 mm capacity for smaller components, while the 1000 and 1500 mm versions accommodate substantially larger hole patterns.\u003c\/p\u003e\n\u003ch2\u003eDigital Readout \u0026amp; Measurement Functions\u003c\/h2\u003e\n\u003cp\u003eThe 1177 digital unit provides a \u003cstrong\u003e0.01 mm \/ 0.0005\" resolution\u003c\/strong\u003e and allows measurements to be displayed in either metric or inch units.\u003c\/p\u003e\n\u003cp\u003eThe digital system includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eON\/OFF\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003emm\/inch conversion\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSET function\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePreset function\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePreset adjustment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAutomatic power-off\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMotion-activated power\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe preset function can be useful when establishing a reference measurement or performing repetitive inspections.\u003c\/p\u003e\n\u003ch2\u003eBuilt for Precision Inspection\u003c\/h2\u003e\n\u003cp\u003eThe 1177 is constructed from stainless steel for durability in demanding industrial measurement environments.\u003c\/p\u003e\n\u003cp\u003eIts specialized design makes it particularly valuable when centerline dimensions are a critical part of a component's dimensional inspection requirements.\u003c\/p\u003e\n\u003cp\u003eRather than measuring from an outside edge and calculating the hole center, the 1177 provides a purpose-built method for measuring the relationship between holes.\u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003eThe INSIZE 1177 Digital Back-Jaw Centerline Caliper is suitable for a wide range of industrial inspection applications.\u003c\/p\u003e\n\u003ch3\u003eCNC Machining\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eCNC-machined components\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMachine plates\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMounting-hole patterns\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTooling\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFixtures\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDies and molds\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePrecision brackets\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFabrication \u0026amp; Manufacturing\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eWelded assemblies\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFabricated structures\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSheet-metal components\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIndustrial frames\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMounting plates\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStructural components\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eQuality Control\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eIncoming inspection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIn-process inspection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFinal inspection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFirst-article inspection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDimensional verification\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProduction quality control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy Use a Back-Jaw Centerline Caliper?\u003c\/h2\u003e\n\u003cp\u003eWhen the dimension being inspected is the distance between two holes, a standard digital caliper may require additional measurements and calculations.\u003c\/p\u003e\n\u003cp\u003eThe 1177's back-jaw configuration is purpose-built for this type of inspection.\u003c\/p\u003e\n\u003cp\u003eThis can make repetitive measurements of hole patterns and mounting locations more straightforward, particularly on large components where the distance between features exceeds the capacity of conventional calipers.\u003c\/p\u003e\n\u003ch2\u003eMeasurement Considerations\u003c\/h2\u003e\n\u003cp\u003eFor accurate results, keep the measuring points and workpiece clean before measurement. Verify the reference position before beginning an inspection and maintain consistent positioning of the caliper against the holes being measured.\u003c\/p\u003e\n\u003cp\u003eThe 1177 is a \u003cstrong\u003enon-waterproof measuring instrument\u003c\/strong\u003e and should be protected from coolant, liquids, and excessive contamination.\u003c\/p\u003e\n\u003cp\u003eFor large-capacity measurements, ensure the caliper is properly supported and aligned with the workpiece so that the measuring points engage the holes consistently.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth align=\"right\"\u003e1177-500\u003c\/th\u003e\n\u003cth align=\"right\"\u003e1177-1000\u003c\/th\u003e\n\u003cth align=\"right\"\u003e1177-1500\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMeasuring Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e20–500 mm \/ 0.8–20\"\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e30–1000 mm \/ 1.2–40\"\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e30–1500 mm \/ 1.2–60\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e±0.10 mm\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e±0.12 mm\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e±0.15 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e0.01 mm \/ 0.0005\"\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e0.01 mm \/ 0.0005\"\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e0.01 mm \/ 0.0005\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMeasurement Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"right\"\u003eHole center distance\u003c\/td\u003e\n\u003ctd align=\"right\"\u003eHole center distance\u003c\/td\u003e\n\u003ctd align=\"right\"\u003eHole center distance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eData Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"right\"\u003eData interface\u003c\/td\u003e\n\u003ctd align=\"right\"\u003eData interface\u003c\/td\u003e\n\u003ctd align=\"right\"\u003eData interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"right\"\u003eStainless steel\u003c\/td\u003e\n\u003ctd align=\"right\"\u003eStainless steel\u003c\/td\u003e\n\u003ctd align=\"right\"\u003eStainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"right\"\u003eCR2032\u003c\/td\u003e\n\u003ctd align=\"right\"\u003eCR2032\u003c\/td\u003e\n\u003ctd align=\"right\"\u003eCR2032\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eProduct Information\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e INSIZE\u003cbr\u003e\u003cstrong\u003eProduct Series:\u003c\/strong\u003e 1177 Digital Back-Jaw Centerline Calipers\u003cbr\u003e\u003cstrong\u003eAvailable Models:\u003c\/strong\u003e 1177-500, 1177-1000, 1177-1500\u003cbr\u003e\u003cstrong\u003eMeasurement:\u003c\/strong\u003e Hole center-to-center distance\u003cbr\u003e\u003cstrong\u003eResolution:\u003c\/strong\u003e 0.01 mm \/ 0.0005\"\u003cbr\u003e\u003cstrong\u003eConstruction:\u003c\/strong\u003e Stainless steel\u003cbr\u003e\u003cstrong\u003eData Output:\u003c\/strong\u003e Data interface\u003cbr\u003e\u003cstrong\u003eBattery:\u003c\/strong\u003e CR2032\u003c\/p\u003e\n\u003ch2\u003eManufacturer Documentation\u003c\/h2\u003e\n\u003cp\u003eRefer to the official INSIZE documentation for complete specifications, operating instructions, dimensions, and technical information.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.insize.com\/pdf-viewer?=\/PDF\/1177.pdf\" title=\"Spec sheet\"\u003eProduct spec sheet\u003c\/a\u003e\u003c\/p\u003e","brand":"Insize","offers":[{"title":".8-20\"\/20-500mm","offer_id":48421091574018,"sku":"1177-500","price":1323.7,"currency_code":"USD","in_stock":true},{"title":"1.2-40\"\/30-1000mm","offer_id":48421091606786,"sku":"1177-1000","price":2266.3,"currency_code":"USD","in_stock":true},{"title":"1.2-60\"\/30-1500mm","offer_id":48421113037058,"sku":"1177-1500","price":3926.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/9074\/6882\/files\/1177-xxxEseries_0fa089dd-0f33-4fa0-9028-2f529e21d502.jpg?v=1753333742","url":"https:\/\/www.crbsupply.com\/products\/insize-1177-digital-back-jaw-centerline-caliper-hole-center-distance-measurement","provider":"CRB Supply","version":"1.0","type":"link"}