{"product_id":"phase2-900-375a-twin-rockwell-superficial-hardness-tester","title":"Phase2+ 900-375A Twin Rockwell\/Superficial Hardness Tester","description":"\u003ch2\u003ePhase2+ 900-375A Twin Rockwell\/Superficial Hardness Tester\u003c\/h2\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe Phase2+ 900-375A is the only benchtop hardness tester you need when your work spans both standard and superficial Rockwell hardness scales. This twin hardness tester reads in all Rockwell hardness scales and Superficial Rockwell hardness scales including the popular HRA, HRBW, HRC, HRN, and HRT scales, combining what would otherwise require two separate instruments into one compact, ruggedly engineered unit.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe 900-375A is ruggedly engineered to obtain highly sensitive and accurate readings, conforming to ASTM E-18 Rockwell hardness standards for unmatched repeatability across all Rockwell hardness scales. Its dual-scale analog dial a key design distinction from single-purpose testers allows operators to switch seamlessly between standard Rockwell loads (10 kgf minor \/ 60–150 kgf major) for bulk metals and Superficial Rockwell loads (3 kgf minor \/ 15–45 kgf major) for thin, soft, or lightly case-hardened materials without changing instruments or reconfiguring the setup.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThis makes the 900-375A particularly well-suited to shops, labs, and heat treat facilities that regularly work with a mix of material types eliminating the capital cost, bench space, and calibration burden of maintaining two separate Rockwell testers. Results are read directly from a precision dual-scale analog dial, providing immediate battery-free hardness readings with real-time tactile feedback on every test cycle. Lifetime technical support is included with all Phase II hardness testers, and NIST\/ASTM certified test blocks, penetrators, and accessory kits are available as options.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull Rockwell AND Superficial Rockwell Testing in One Unit\u003c\/strong\u003e - The 900-375A is the only instrument you need for both test methods covering all standard Rockwell scales (HRA, HRBW, HRC, HRD, HRE, HRF, HRG, and more) and all Superficial Rockwell scales (HR15N, HR30N, HR45N, HR15T, HR30T, HR45T, and more) without swapping instruments or reconfiguring the test station.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Minor Loads: 3 kgf \u0026amp; 10 kgf\u003c\/strong\u003e - Selectable minor loads of 3 kgf (Superficial) and 10 kgf (standard Rockwell) on a single platform enable testing of thin, soft, and lightly case-hardened materials alongside hard steels, cast irons, titanium, and other demanding alloys all from one benchtop location.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-Scale Analog Dial for Instant, Battery-Free Readouts\u003c\/strong\u003e - A dual-scale analog dial gauge simultaneously supports both Rockwell and Superficial Rockwell scale readout, providing immediate, clear hardness values on every test cycle without electronics, power, or warm-up time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDead Weight Loading - ASTM E-18 Compliant\u003c\/strong\u003e - Dead weight test force application across six major load selections (15, 30, 45, 60, 100, and 150 kgf) delivers the precise, repeatable force delivery required for consistent results across all Rockwell and Superficial Rockwell scales per ASTM E-18.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpace and Cost Efficiency of Two Testers in One\u003c\/strong\u003e - Eliminates the need to purchase, maintain, calibrate, and qualify two separate instruments - a standard Rockwell tester and a Superficial Rockwell tester - saving bench space, reducing capital expenditure, and simplifying your calibration schedule.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLifetime Technical Support Included\u003c\/strong\u003e - Every Phase2+ 900-375A ships with a full complement of Rockwell and Superficial Rockwell indenters, test blocks, and anvils, backed by lifetime technical support at no additional cost, with NIST\/ASTM certified test blocks available as an option.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable data-sheets-baot=\"1\" data-sheets-root=\"1\" border=\"1\" dir=\"ltr\" cellpadding=\"0\" cellspacing=\"0\" xmlns=\"http:\/\/www.w3.org\/1999\/xhtml\"\u003e\n\u003ccolgroup\u003e\n\u003ccol width=\"170\"\u003e\n\u003ccol width=\"322\"\u003e\n\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecification\u003c\/td\u003e\n\u003ctd\u003eDetails\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e900-375A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResults Display\u003c\/td\u003e\n\u003ctd\u003eDual Scale Analog Dial Gauge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinor Load\u003c\/td\u003e\n\u003ctd\u003e3 kgf (Superficial) \/ 10 kgf (Rockwell)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMajor Load\u003c\/td\u003e\n\u003ctd\u003e15 kgf, 30 kgf, 45 kgf (Superficial) \/ 60 kgf, 100 kgf, 150 kgf (Rockwell)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTest Force Application\u003c\/td\u003e\n\u003ctd\u003eDead Weight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTest Force Control\u003c\/td\u003e\n\u003ctd\u003eManual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRockwell Scales\u003c\/td\u003e\n\u003ctd\u003eHRA, HRBW, HRC, HRD, HRE, HRF, HRG, HRH, HRK, HRL, HRM, and more\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuperficial Rockwell Scales\u003c\/td\u003e\n\u003ctd\u003eHR15N, HR30N, HR45N, HR15T, HR30T, HR45T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVertical Capacity\u003c\/td\u003e\n\u003ctd\u003e6.0 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThroat Depth\u003c\/td\u003e\n\u003ctd\u003e5.5 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e26.0 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e18.2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDepth\u003c\/td\u003e\n\u003ctd\u003e9.4 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Weight\u003c\/td\u003e\n\u003ctd\u003e250 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard Compliance\u003c\/td\u003e\n\u003ctd\u003eASTM E-18\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTechnical Support\u003c\/td\u003e\n\u003ctd\u003eLifetime\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable data-sheets-baot=\"1\" data-sheets-root=\"1\" border=\"1\" dir=\"ltr\" cellpadding=\"0\" cellspacing=\"0\" xmlns=\"http:\/\/www.w3.org\/1999\/xhtml\"\u003e\n\u003ccolgroup\u003e\n\u003ccol width=\"63\"\u003e\n\u003ccol width=\"149\"\u003e\n\u003ccol width=\"120\"\u003e\n\u003ccol width=\"78\"\u003e\n\u003ccol width=\"359\"\u003e\n\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"5\" rowspan=\"1\"\u003eCOMBINED SCALE REFERENCE TABLE:\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eScale\u003c\/td\u003e\n\u003ctd\u003eIndentor\u003c\/td\u003e\n\u003ctd\u003ePreliminary Force\u003c\/td\u003e\n\u003ctd\u003eTotal Force\u003c\/td\u003e\n\u003ctd\u003eTypical Applications\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eA\u003c\/td\u003e\n\u003ctd\u003eSpheroconical Diamond\u003c\/td\u003e\n\u003ctd\u003e10 kgf\u003c\/td\u003e\n\u003ctd\u003e60 kgf\u003c\/td\u003e\n\u003ctd\u003eCemented carbides, thin steel, shallow case hardened steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB\u003c\/td\u003e\n\u003ctd\u003e1\/16\" Carbide Ball\u003c\/td\u003e\n\u003ctd\u003e10 kgf\u003c\/td\u003e\n\u003ctd\u003e100 kgf\u003c\/td\u003e\n\u003ctd\u003eCopper alloys, soft steels, aluminum alloys, malleable iron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eC\u003c\/td\u003e\n\u003ctd\u003eSpheroconical Diamond\u003c\/td\u003e\n\u003ctd\u003e10 kgf\u003c\/td\u003e\n\u003ctd\u003e150 kgf\u003c\/td\u003e\n\u003ctd\u003eSteel, hard cast irons, titanium, deep case hardened steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD\u003c\/td\u003e\n\u003ctd\u003eSpheroconical Diamond\u003c\/td\u003e\n\u003ctd\u003e10 kgf\u003c\/td\u003e\n\u003ctd\u003e100 kgf\u003c\/td\u003e\n\u003ctd\u003eThin steel, medium case hardened steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eE\u003c\/td\u003e\n\u003ctd\u003e1\/8\" Carbide Ball\u003c\/td\u003e\n\u003ctd\u003e10 kgf\u003c\/td\u003e\n\u003ctd\u003e100 kgf\u003c\/td\u003e\n\u003ctd\u003eCast iron, aluminum \u0026amp; magnesium alloys, bearing metals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eF\u003c\/td\u003e\n\u003ctd\u003e1\/16\" Carbide Ball\u003c\/td\u003e\n\u003ctd\u003e10 kgf\u003c\/td\u003e\n\u003ctd\u003e60 kgf\u003c\/td\u003e\n\u003ctd\u003eAnnealed copper alloys, thin soft sheet metals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eG\u003c\/td\u003e\n\u003ctd\u003e1\/16\" Carbide Ball\u003c\/td\u003e\n\u003ctd\u003e10 kgf\u003c\/td\u003e\n\u003ctd\u003e150 kgf\u003c\/td\u003e\n\u003ctd\u003eMalleable irons, copper-nickel-zinc alloys\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e15N\u003c\/td\u003e\n\u003ctd\u003eSpheroconical Diamond\u003c\/td\u003e\n\u003ctd\u003e3 kgf\u003c\/td\u003e\n\u003ctd\u003e15 kgf\u003c\/td\u003e\n\u003ctd\u003eThin hardened steel, similar to A\/C\/D scales\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e30N\u003c\/td\u003e\n\u003ctd\u003eSpheroconical Diamond\u003c\/td\u003e\n\u003ctd\u003e3 kgf\u003c\/td\u003e\n\u003ctd\u003e30 kgf\u003c\/td\u003e\n\u003ctd\u003eThin hardened steel, similar to A\/C\/D scales\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e45N\u003c\/td\u003e\n\u003ctd\u003eSpheroconical Diamond\u003c\/td\u003e\n\u003ctd\u003e3 kgf\u003c\/td\u003e\n\u003ctd\u003e45 kgf\u003c\/td\u003e\n\u003ctd\u003eThin hardened steel, similar to A\/C\/D scales\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e15T\u003c\/td\u003e\n\u003ctd\u003e1\/16\" Carbide Ball\u003c\/td\u003e\n\u003ctd\u003e3 kgf\u003c\/td\u003e\n\u003ctd\u003e15 kgf\u003c\/td\u003e\n\u003ctd\u003eThin soft sheet metals, similar to B\/F\/G scales\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e30T\u003c\/td\u003e\n\u003ctd\u003e1\/16\" Carbide Ball\u003c\/td\u003e\n\u003ctd\u003e3 kgf\u003c\/td\u003e\n\u003ctd\u003e30 kgf\u003c\/td\u003e\n\u003ctd\u003eThin soft sheet metals, similar to B\/F\/G scales\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e45T\u003c\/td\u003e\n\u003ctd\u003e1\/16\" Carbide Ball\u003c\/td\u003e\n\u003ctd\u003e3 kgf\u003c\/td\u003e\n\u003ctd\u003e45 kgf\u003c\/td\u003e\n\u003ctd\u003eThin soft sheet metals, similar to B\/F\/G scales\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eItems Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePhase2+ 900-375A Hardness Tester\u003c\/li\u003e\n\u003cli\u003eDiamond Conical Indentor\u003c\/li\u003e\n\u003cli\u003e1\/16\" Ball Indentor\u003c\/li\u003e\n\u003cli\u003e2 HRC Test Blocks\u003c\/li\u003e\n\u003cli\u003e1 HRB Test Block\u003c\/li\u003e\n\u003cli\u003e1 HR15N Test Block\u003c\/li\u003e\n\u003cli\u003e1 HR30N Test Block\u003c\/li\u003e\n\u003cli\u003e1 HR45T Test Block\u003c\/li\u003e\n\u003cli\u003eTest Table 5.87\" (150 mm)\u003c\/li\u003e\n\u003cli\u003eFlat Anvil 2.5\" (63 mm)\u003c\/li\u003e\n\u003cli\u003eStandard Vee Anvil\u003c\/li\u003e\n\u003cli\u003eAccessory Case\u003c\/li\u003e\n\u003cli\u003eDust Cover\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0890\/6991\/2348\/files\/Phase2_900-375A_Twin_Rockwell_Superficial_Hardness_Tester_User_Manual.pdf?v=1774622229\" title=\"Phase2+ 900-375A Twin Rockwell\/Superficial Hardness Tester User Manual\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0890\/6991\/2348\/files\/PDF_image_100x100.png?v=1756409173\" alt=\"INSIZE ISHW-L20B Webster Hardness Tester Manual\"\u003ePhase2+ 900-375A Twin Rockwell\/Superficial Hardness Tester User Manual\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0890\/6991\/2348\/files\/Phase2_900-375A_Twin_Rockwell_Superficial_Hardness_Tester_Catalog.pdf?v=1774622249\" title=\"Phase2+ 900-375A Twin Rockwell\/Superficial Hardness Tester Catalog\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0890\/6991\/2348\/files\/PDF_image_100x100.png?v=1756409173\" alt=\"INSIZE ISHW-L20B Webster Hardness Tester Manual\"\u003ePhase2+ 900-375A Twin Rockwell\/Superficial Hardness Tester Catalog\u003c\/a\u003e\u003c\/p\u003e","brand":"Phase2+","offers":[{"title":"Default Title","offer_id":53858734965020,"sku":"900-375A","price":5998.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0890\/6991\/2348\/files\/Phase2_900-375A_Twin_Rockwell_Superficial_Hardness_Tester.png?v=1774622197","url":"https:\/\/precisionengineeringsupply.com\/products\/phase2-900-375a-twin-rockwell-superficial-hardness-tester","provider":"Precision Engineering Supply","version":"1.0","type":"link"}