{"product_id":"8mm-steel-half-round-test-rod-dial-indicator-holder-extension","title":"8mm Steel Half-Round Test Rod for Dial Indicator Holder","description":"\n\u003ch2\u003e8mm Steel Half-Round Combination Test Rod – Dial Indicator Holder Extension\u003c\/h2\u003e\n\u003cp\u003eUpgrade your precision measurement setup with this \u003cstrong\u003e8mm diameter steel half-round combination test rod\u003c\/strong\u003e. Designed to extend and connect with dial indicator holders, this rod is the go-to accessory for machinists, toolmakers, and engineers who demand accuracy and reliability on the shop floor. Made in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUniversal Compatibility:\u003c\/strong\u003e Fits standard dial indicator and dial test indicator holders with stems or dovetail connections — ideal for centering shafts, cylinders, and holes on machine tools.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Quality Steel Construction:\u003c\/strong\u003e Crafted from hardened steel with a blackening surface treatment for excellent durability, corrosion resistance, and a long service life.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrecise 8mm Diameter:\u003c\/strong\u003e Consistent sizing ensures a snug, reliable fit with compatible gauge instrument holders and extension arms.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHalf-Round Profile:\u003c\/strong\u003e The half-round combination design is specifically suited for special machine tool scenes — perfect for finding the center of a shaft or bore with confidence.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSimple to Use:\u003c\/strong\u003e Attaches quickly and securely, making dial gauge measurement work faster and more convenient on the workbench or machine tool.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDiameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHigh-quality hardened steel\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSurface Treatment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBlackening\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDial indicator \/ dial test indicator holders\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 piece\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × 8mm Steel Half-Round Combination Test Rod\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eNote: Actual product color may vary slightly from photos due to lighting conditions. Minor measurement deviations may exist.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eYou May Also Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge 0-10\/0-12\/0-25 Bar | DIY Tool\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/electromagnetic-induction-tester-coil-motherboard-fault-detector\"\u003eElectromagnetic Induction Tester – Coil \u0026amp; Circuit Fault Detector\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/hand-power-tools\" target=\"_blank\" rel=\"noopener\"\u003eOSHA guidance on hand and power tools\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What type of dial indicator holders is this 8mm test rod compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: This 8mm diameter steel half-round test rod is compatible with standard dial indicator and dial test indicator holders that accept 8mm stems or dovetail-style connections. It works seamlessly as an extension rod for most common gauge instruments used in metalworking and machine tool setups.\u003c\/p\u003e\n\u003ch4\u003eQ: What is the surface treatment on this steel test rod and why does it matter?\u003c\/h4\u003e\n\u003cp\u003eA: The rod undergoes a blackening treatment, which enhances its resistance to surface oxidation and wear. This treatment extends the service life of the rod and maintains its precise dimensions over time, ensuring consistent performance in demanding workshop environments.\u003c\/p\u003e\n\u003ch4\u003eQ: What is the half-round combination test rod used for?\u003c\/h4\u003e\n\u003cp\u003eA: The half-round combination design is specifically engineered for centering shafts, cylinders, or bores on machine tools. It is an essential accessory for machinists who need to precisely locate the center of a workpiece using a dial test indicator in lathe or milling machine setups.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What type of dial indicator holders is this 8mm test rod compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This 8mm diameter steel half-round test rod is compatible with standard dial indicator and dial test indicator holders that accept 8mm stems or dovetail-style connections. 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