{"product_id":"mitutoyo-155-125-telescoping-gage-2-1-8-to-3-1-2-in","title":"Mitutoyo 155-125 Telescoping Gage 2-1\/8 to 3-1\/2 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe MITUTOYO 155-125 is a telescoping gage designed to measure inside diameters, bore sizes, and internal slot widths with precision. The gage features a satin chrome finish and spans a measurement range of 2-1\/8 inches to 3-1\/2 inches, with an overall length of 5.9055 inches. After the telescoping contact is locked in position within the bore, the measurement is transferred to an outside micrometer for a final reading. This tool is commonly used by machinists, maintenance technicians, and quality control inspectors working on engines, hydraulic cylinders, pump housings, and similar precision-fit components.\u003c\/p\u003e\n\u003cp\u003eThis telescoping gage is suited for workshop and field use where internal bore measurements fall within the 2-1\/8 to 3-1\/2 inch range. Typical applications include verifying bore tolerances during engine rebuilds, checking housing fits during pump or motor assembly, and confirming internal dimensions on machined parts. The satin chrome finish reduces glare and resists corrosion, making it practical in both shop and light industrial environments.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eMeasurement range of 2-1\/8 to 3-1\/2 inches for internal bore and slot gauging\u003c\/li\u003e\n  \u003cli\u003eOverall length of 5.9055 inches for access into moderate-depth bores\u003c\/li\u003e\n  \u003cli\u003eSatin chrome finish resists corrosion and minimizes surface glare\u003c\/li\u003e\n  \u003cli\u003eLock mechanism holds the telescoping contact at the measured position for transfer to a micrometer\u003c\/li\u003e\n  \u003cli\u003eLightweight at 0.1 pounds for easy single-hand operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard telescoping gage for use with any outside micrometer capable of reading within the 2-1\/8 to 3-1\/2 inch range.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eTelescoping gages are used by machinists and precision measurement technicians and require no installation in the traditional sense. Compress the telescoping contacts, insert into the bore at a slight angle, allow the contacts to expand against the bore wall, then lock the spindle and withdraw the gage. Transfer the locked measurement to a calibrated outside micrometer. Avoid forcing the contacts into bores smaller than the minimum range, as this can damage the locking mechanism.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Measurement Range\u003c\/strong\u003e: 2-1\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Measurement Range\u003c\/strong\u003e: 3-1\/2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 5.9055 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Satin Chrome\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 41111600\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: MITUTOYO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 155-125\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MITUTOYO","offers":[{"title":"Default Title","offer_id":51557362532658,"sku":"155-125","price":65.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/360b6f3cb7f8d87a81339cea896e9d7a.jpg?v=1786386574","url":"https:\/\/voomisupply.com\/products\/mitutoyo-155-125-telescoping-gage-2-1-8-to-3-1-2-in","provider":"Voomi Supply","version":"1.0","type":"link"}