{"product_id":"fowler-52-439-032-0-1-2-3-setup-block-matched-pair","title":"Fowler 52-439-032-0 1-2-3 Setup Block Matched Pair","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe FOWLER 52-439-032-0 is a matched pair of 1-2-3 setup blocks precision-ground from hardened steel for use in machining, grinding, and inspection setups. Each block measures 1 inch wide by 2 inches long by 3 inches tall, with a squareness tolerance of 0.0003 inches and parallelism held to 0.0001 inches. Hardness runs 55 to 60 HRC, providing the rigidity and wear resistance required for repeated use on surface plates and magnetic chucks. The blocks ship in a metal case and are sold as a matched pair. Machinists, toolmakers, and QC technicians rely on these for workholding, part support, and angle setups.\u003c\/p\u003e\u003cp\u003e1-2-3 blocks are standard tooling in precision metalworking environments including job shops, production floors, and metrology labs. They support workpieces during milling, drilling, and surface grinding operations, and serve as reference datums during CMM and indicator inspection routines. The 5 tapped holes and 18 untapped holes allow clamping rods, bolts, and studs to pass through or thread in, making the blocks adaptable to a wide range of fixturing configurations. These are suited to both manual and CNC machine tool environments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSquareness held to 0.0003 inches for accurate angular reference\u003c\/li\u003e\n\u003cli\u003eParallelism tolerance of 0.0001 inches for reliable stacking and support\u003c\/li\u003e\n\u003cli\u003e55 to 60 HRC hardened steel construction resists wear and deformation\u003c\/li\u003e\n\u003cli\u003e5 tapped holes and 18 untapped holes for versatile fixturing and clamping\u003c\/li\u003e\n\u003cli\u003eSold as a matched pair for balanced workholding setups\u003c\/li\u003e\n\u003cli\u003eIncludes metal storage and transport case\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as standard 1-2-3 setup blocks for use on surface plates, magnetic chucks, and machine tool tables in precision machining and inspection applications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by machinists and toolmakers as part of workpiece setup. Clean mating surfaces before placing blocks to prevent debris from affecting accuracy. Inspect blocks periodically for burrs or nicks and stone lightly if needed to maintain flatness. Store in the included metal case when not in use to protect ground surfaces.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSetup Block Type\u003c\/strong\u003e: 1-2-3 Block\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Hardened Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Width\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n\u003cstrong\u003eOverall Height\u003c\/strong\u003e: 3 inches\u003cli\u003e\n\u003cstrong\u003eSquareness\u003c\/strong\u003e: 0.0003 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eParallelism\u003c\/strong\u003e: 0.0001 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness\u003c\/strong\u003e: 55 to 60 HRC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Tapped Holes\u003c\/strong\u003e: 5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Untapped Holes\u003c\/strong\u003e: 18\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSold As\u003c\/strong\u003e: Matched Pair\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes\u003c\/strong\u003e: Metal Case\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 3.02 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: FOWLER\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 52-439-032-0\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"FOWLER","offers":[{"title":"Default Title","offer_id":67907370811698,"sku":"52-439-032-0","price":150.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e33732e6e5b1eab140afe1a4d235f7f8.jpg?v=1791178632","url":"https:\/\/voomisupply.com\/products\/fowler-52-439-032-0-1-2-3-setup-block-matched-pair","provider":"Voomi Supply","version":"1.0","type":"link"}