{"product_id":"spi-19-138-7-class-zz-minus-plug-pin-gage-0-138-in","title":"Spi 19-138-7 Class Zz Minus Plug Pin Gage 0.138 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 19-138-7 is a Class ZZ minus plug pin gage used to verify hole diameters to a nominal size of 0.138 inches. Built from steel, it delivers a tolerance of 0.0002 inches, making it suitable for go\/no-go inspection work on production floors and in quality control environments. A minus gage is ground below nominal, confirming that a hole has not been cut undersize. Machinists, toolmakers, and quality technicians use plug pin gages as part of standard dimensional inspection routines when checking drilled, reamed, or punched holes.\u003c\/p\u003e\n\u003cp\u003eThis gage is appropriate for use in manufacturing, fabrication, and inspection settings where small-diameter hole verification is required. At 0.138 inches nominal diameter, it covers a common drill size range used in light metalworking and precision assembly. It is well suited for bench inspection, incoming material checks, and in-process quality verification on machined components.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eClass ZZ tolerance class for general-purpose inspection work\u003c\/li\u003e\n  \u003cli\u003eMinus designation confirms the gage is ground below nominal size\u003c\/li\u003e\n  \u003cli\u003e0.0002-inch tolerance for precise hole-size verification\u003c\/li\u003e\n  \u003cli\u003eSteel construction for durability in shop environments\u003c\/li\u003e\n  \u003cli\u003e0.138-inch nominal diameter covers a common small-bore drill size\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard Class ZZ minus plug pin gage for general-purpose dimensional inspection of 0.138-inch nominal diameter holes in metalworking and manufacturing applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003ePlug pin gages are handled and used by machinists and quality inspection personnel, not installed in the conventional sense. Clean the gage and the hole being inspected before use to prevent debris from affecting readings. Store the gage in its case or a protected location to avoid surface damage that could affect accuracy. Periodic calibration against a traceable standard is recommended to confirm the gage remains within tolerance.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNominal Diameter\u003c\/strong\u003e: 0.138 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTolerance\u003c\/strong\u003e: 0.0002 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTolerance Class\u003c\/strong\u003e: Class ZZ Minus\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.2 pounds\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: SPI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 19-138-7\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51722475798834,"sku":"19-138-7","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d743195435f6f88506b6c6898aad9998.jpg?v=1788591676","url":"https:\/\/voomisupply.com\/products\/spi-19-138-7-class-zz-minus-plug-pin-gage-0-138-in","provider":"Voomi Supply","version":"1.0","type":"link"}