{"id":28335,"date":"2024-10-22T12:09:07","date_gmt":"2024-10-22T10:09:07","guid":{"rendered":"https:\/\/www.samatools.it\/prodotto\/inside-micrometer-with-extension-rod-001mm\/"},"modified":"2026-05-20T14:22:54","modified_gmt":"2026-05-20T12:22:54","slug":"inside-micrometer-with-extension-rod-001mm","status":"publish","type":"product","link":"https:\/\/www.samatools.it\/en\/product\/inside-micrometer-with-extension-rod-001mm\/","title":{"rendered":"Inside micrometer with extension rod – SA900E"},"content":{"rendered":"

The inside micrometer with extension rod<\/strong> is a measuring instrument designed for checking internal diameters<\/strong> and internal dimensions over very wide measuring ranges. One of its main advantages is the possibility of covering a large number of measuring ranges with a single system, simply by assembling the rods according to the dimension to be checked. This makes the instrument especially practical when different internal diameters must be inspected without using multiple separate instruments, helping optimize both the measuring equipment and related operating costs.<\/p>\n

The operating principle is based on a micrometer head<\/strong> onto which extension rods of different lengths are connected. In this way, the measuring range can be configured according to the internal dimension to be measured, without needing a different instrument for each interval. This modularity is exactly what makes the inside micrometer with extension rod<\/strong> a practical solution for applications involving very different internal diameters. In some applications this instrument is also referred to as a rod-type inside micrometer.<\/p>\n

The instrument can also be used for ovality inspections<\/strong>, carrying out checks in multiple positions of the internal diameter and comparing the obtained values.<\/p>\n

The micrometer head<\/strong> is the base element of the system, while the rods allow the measuring range to be progressively extended. This configuration is particularly useful when checking bores, internal seats and large internal diameters, because it allows the instrument to be adapted according to the dimension to be verified.<\/p>\n

The 0.01 mm resolution<\/strong> places this instrument in the category of hundredth-reading inside micrometers, suitable for the dimensional inspections commonly required in many mechanical applications. The presence of carbide contacts<\/strong> also contributes to ensuring good continuity of use and proper wear resistance of the measuring surfaces.<\/p>\n

The available range covers very wide measuring capacities: configurations start from 50-250 mm<\/strong> and extend up to 1000-3000 mm<\/strong>, with different rod compositions depending on the selected version. This allows the same measuring principle to be used both for medium-size internal inspections and for very large internal dimensions, where the possibility of composing the measuring range becomes a real operational advantage.<\/p>\n

The kit also includes a setting master for zero adjustment<\/strong> of the micrometer head, useful for correctly setting the instrument before measurement. When the micrometer is assembled with extension rods, it is recommended to verify the overall measurement before proceeding on the component. In this phase, a gauge block comparator<\/strong> becomes particularly useful, because it allows a stable reference to be created using gauge blocks and helps correctly verify the assembled micrometer before inspection.<\/p>\n

From an operational point of view, this inside micrometer with extension rod<\/strong> is intended for workshops, tool rooms and quality control departments that need to carry out internal measurements over variable or very wide ranges with a modular measuring solution. It is especially suitable where configuration flexibility, extended measuring ranges and the ability to adapt the instrument to the required internal dimension are important.<\/p>\n

Applications<\/h3>\n
    \n
  • Measurement of internal diameters over wide ranges<\/li>\n
  • Dimensional inspections in workshops<\/li>\n
  • Inspection of bores and internal seats<\/li>\n
  • Measurement of large internal dimensions<\/li>\n
  • Ovality inspection on internal diameters<\/li>\n
  • Use in tool rooms and quality control departments<\/li>\n
  • Inspection of extended internal dimensions<\/li>\n<\/ul>\n

    FAQ – Inside micrometer with extension rod<\/h2>\n

    What is an inside micrometer with extension rod?<\/strong>
    \nIt is an inside measuring instrument composed of a micrometer head and multiple extension rods that can be combined together to cover different measuring ranges.<\/p>\n

    What is an inside micrometer with extension rods used for?<\/strong>
    \nIt is used for checking internal diameters and internal dimensions over very wide measuring ranges using a modular configuration adaptable to the required measurement.<\/p>\n

    How does an inside micrometer with extension rods work?<\/strong>
    \nThe instrument starts from a micrometer head and the necessary rods are added to reach the required measuring range. In this way the instrument can be configured according to the internal dimension that must be checked.<\/p>\n

    What is the micrometer head?<\/strong>
    \nIt is the base element of the instrument from which the measurement starts and onto which the extension rods are connected.<\/p>\n

    Why choose an inside micrometer with extension rods instead of multiple separate instruments?<\/strong>
    \nBecause it allows many different internal measuring ranges to be covered using a single measuring system. This is especially useful when several dimensions must be checked without managing multiple dedicated instruments.<\/p>\n

    Can this instrument also be used for ovality inspection?<\/strong>
    \nYes, the instrument can also be used for ovality inspections by carrying out measurements in different positions of the internal diameter and comparing the obtained values.<\/p>\n

    What resolution does this inside micrometer have?<\/strong>
    \nThe resolution is 0.01 mm, making the instrument suitable for hundredth-reading internal inspections.<\/p>\n

    What is the purpose of the carbide contacts?<\/strong>
    \nCarbide contacts help ensure good wear resistance and continuity of use, especially when the instrument is frequently used.<\/p>\n

    What measuring ranges are available?<\/strong>
    \nAvailable configurations include 50-250 mm, 50-600 mm, 50-1000 mm, 50-1500 mm, 150-2000 mm and 1000-3000 mm, each with a dedicated rod composition.<\/p>\n

    Does the instrument include a setting reference for zero adjustment?<\/strong>
    \nYes, the kit includes a setting master for zero adjustment of the micrometer head.<\/p>\n

    How should the measurement of an inside micrometer with extension rods be checked before measuring the component?<\/strong>
    \nWhen the instrument is assembled with multiple rods, it is recommended to verify the obtained dimension using a stable reference before proceeding on the component.<\/p>\n

    What is the purpose of a gauge block comparator in this application?<\/strong>
    \nIt is used to create a stable measuring reference with gauge blocks, useful for checking the assembled micrometer before inspection.<\/p>\n

    Is this instrument suitable for very large measuring ranges?<\/strong>
    \nYes, one of its main strengths is the possibility of reaching dimensions up to 3000 mm using the rod composition designed for the required range.<\/p>\n

    Who is this inside micrometer intended for?<\/strong>
    \nIt is intended for workshops, tool rooms and quality control departments that need to perform internal measurements over variable or very wide ranges with a modular measuring solution.<\/p>\n

    What are the most common mistakes when using an inside micrometer with extension rods?<\/strong>
    \nThe most common mistakes are incorrect rod assembly, insufficient reference verification before measurement, dirty contact surfaces and a configuration not suitable for the internal dimension being checked.<\/p>\n","protected":false},"excerpt":{"rendered":"\n\n\n\n\n\n\n\n\n
    Code<\/td>\nRange (mm)<\/td>\nExtensions rods<\/td>\nDiam. (mm)<\/td>\n<\/tr>\n
    SA900E-250<\/td>\n50-250<\/td>\n13\/25\/50\/100<\/td>\n15<\/td>\n<\/tr>\n
    SA900E-600<\/td>\n50-600<\/td>\n13\/25\/50\/100\/150\/200<\/td>\n15<\/td>\n<\/tr>\n
    SA900E-1000<\/td>\n50-1000<\/td>\n13\/25\/50\/2×100\/150\/200\/300<\/td>\n15<\/td>\n<\/tr>\n
    SA900E-1500<\/td>\n50-1500<\/td>\n13\/25\/50\/2×100\/150\/2×200\/2×300<\/td>\n15<\/td>\n<\/tr>\n
    SA900E-2000<\/td>\n150-2000<\/td>\n25\/2×50\/100\/2×200\/3×400<\/td>\n22<\/td>\n<\/tr>\n
    SA900E-3000<\/td>\n1000-3000<\/td>\n50\/2×100\/200\/500\/1000<\/td>\n28<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Accuracy = (3+n+L\/50)\u00b5m up to 2000mm \/
    \n(7+n+L\/50)\u00b5m over 2000mm
    \nn=number of rods – L=Maximum Measuring Length<\/p>\n","protected":false},"featured_media":29076,"template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[6379],"product_tag":[],"class_list":["post-28335","product","type-product","status-publish","has-post-thumbnail","product_cat-inside-micrometers","first","instock","shipping-taxable","product-type-simple"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.samatools.it\/en\/wp-json\/wp\/v2\/product\/28335","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.samatools.it\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.samatools.it\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.samatools.it\/en\/wp-json\/wp\/v2\/media\/29076"}],"wp:attachment":[{"href":"https:\/\/www.samatools.it\/en\/wp-json\/wp\/v2\/media?parent=28335"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.samatools.it\/en\/wp-json\/wp\/v2\/product_brand?post=28335"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.samatools.it\/en\/wp-json\/wp\/v2\/product_cat?post=28335"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.samatools.it\/en\/wp-json\/wp\/v2\/product_tag?post=28335"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}