{"product_id":"osg-12800100-hand-sti-tap-m2-x-0-4-metric-coarse-d2","title":"Osg 12800100 Hand Sti Tap M2 X 0.4 Metric Coarse D2","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 12800100 is a hand STI tap designed for cutting M2 x 0.4 metric coarse internal threads in a range of ferrous and non-ferrous materials. This 2-flute tap features a modified bottoming chamfer, allowing it to thread closer to the bottom of a blind hole than a standard plug chamfer. Built from high-speed steel with a bright finish, it carries a D2 thread limit and a 6H class of fit, making it suitable for precision thread repair and production tapping applications. Overall length is 1.88 inches with a thread length of 0.56 inches.\u003c\/p\u003e\n\u003cp\u003eThis tap is used in machine shops, maintenance facilities, and field repair settings where M2 metric coarse threads need to be cut or restored. The modified bottoming chamfer makes it particularly useful in confined blind-hole applications where maximum thread engagement depth is required. It is appropriate for use in aluminum, cast iron, high-carbon steel, low-carbon steel, and medium-carbon steel workpieces. Machinists and maintenance technicians working on small fastener threads in precision assemblies will find this tap well-suited to the task.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eM2 x 0.4 metric coarse thread form with D2 thread limit and 6H class of fit\u003c\/li\u003e\n  \u003cli\u003eModified bottoming chamfer for threading close to the bottom of blind holes\u003c\/li\u003e\n  \u003cli\u003e2-flute geometry suited for small-diameter tapping and chip clearance\u003c\/li\u003e\n  \u003cli\u003eHigh-speed steel construction provides durability across a range of workpiece materials\u003c\/li\u003e\n  \u003cli\u003eBright finish with no coating — suitable for use with cutting fluids as needed\u003c\/li\u003e\n  \u003cli\u003eCompact 1.88-inch overall length designed for tight-access tapping\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for cutting M2 x 0.4 metric coarse threads in aluminum, cast iron, high-carbon steel, low-carbon steel, and medium-carbon steel. Part of the OSG Series 128 STI tap line.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists or maintenance technicians using a standard tap wrench or appropriate hand-tapping fixture. Ensure the workpiece is securely fixtured and the tap is started square to the hole to avoid tap breakage at this small diameter. Apply a suitable cutting fluid for the workpiece material before and during tapping. Disconnect or lock out any power to the workpiece assembly before performing thread repair on installed components.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: M2 x 0.4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: Metric Coarse\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Pitch\u003c\/strong\u003e: 0.4 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: D2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClass of Fit\u003c\/strong\u003e: 6H\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer Type\u003c\/strong\u003e: Modified Bottoming\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.56 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.88 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.141 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: High-Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Aluminum, Cast Iron, High-Carbon Steel, Low-Carbon Steel, Medium-Carbon Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 128\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.009 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27112806\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: OSG\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 12800100\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51733577072946,"sku":"12800100","price":66.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4d5affb72b5248be5d9e3c91641c9fde.jpg?v=1788756503","url":"https:\/\/voomisupply.com\/products\/osg-12800100-hand-sti-tap-m2-x-0-4-metric-coarse-d2","provider":"Voomi Supply","version":"1.0","type":"link"}