{"product_id":"osg-1635008259-thread-forming-tap-m8x1-25-metric-coarse","title":"Osg 1635008259 Thread Forming Tap M8x1.25 Metric Coarse","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 1635008259 is a thread forming tap designed for M8x1.25 metric coarse threading in blind and through-hole applications. Unlike cutting taps, thread forming taps displace material rather than cut it, producing stronger threads with no chips. This tap features a modified bottoming chamfer with 2.5 to 3 chamfered threads, a 6H class of fit, and a D9 thread limit. It is manufactured from cobalt high speed steel and finished with a TiCN coating for extended tool life in demanding materials. Overall length is 3.54 inches with a thread length of 0.47 inches and a tapping depth of 1.38 inches. Licensed machinists and tool room technicians install this tap in production and maintenance environments.\u003c\/p\u003e\n\u003cp\u003eThe OSG 1635008259 is suited for blind hole and through-hole threading operations across a broad range of materials including aluminum, cast aluminum, carbon steel, alloy steel, die steel, stainless steel, hardened steel, high-nickel alloy, and titanium. The modified bottoming chamfer allows threading closer to the bottom of blind holes than a standard plug chamfer. It is part of the OSG EXOPRO XPF Series 16350, a line engineered for forming internal threads in both ferrous and non-ferrous workpieces in shop and production settings.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eThread forming design displaces material for chip-free, stronger threads\u003c\/li\u003e\n  \u003cli\u003eTiCN coating improves wear resistance and tool life across hard and abrasive materials\u003c\/li\u003e\n  \u003cli\u003eModified bottoming chamfer with 2.5 to 3 chamfered threads for closer blind-hole threading\u003c\/li\u003e\n  \u003cli\u003eCobalt high speed steel construction handles hardened steel, stainless, titanium, and high-nickel alloys\u003c\/li\u003e\n  \u003cli\u003eRight-hand thread direction, 6H class of fit, D9 thread limit for standard metric tolerance\u003c\/li\u003e\n  \u003cli\u003eCompatible with both blind hole and through-hole threading operations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for M8x1.25 metric coarse thread forming in blind and through-hole applications across aluminum, cast aluminum, carbon steel, alloy steel, die steel, stainless steel, hardened steel, high-nickel alloy, and titanium workpieces. Part of the OSG EXOPRO XPF Series 16350.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThread forming taps require a properly sized forming hole diameter, which is larger than a standard tap drill size — consult the OSG Series 16350 forming drill chart for the correct hole preparation diameter before use. Power down and secure all machinery before tap installation or changeout. Use appropriate tapping fluid or cutting oil matched to the workpiece material, particularly when working with stainless steel or high-nickel alloys. Follow shop safety protocols and machine tool manufacturer guidelines for spindle speed and feed rate when running thread forming operations.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: M8x1.25\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: Metric Coarse\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClass of Fit\u003c\/strong\u003e: 6H\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: D9\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer Type\u003c\/strong\u003e: Modified Bottoming\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfered Threads\u003c\/strong\u003e: 2.5 to 3P\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.54 inches (90 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.47 inches (12 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTapping Depth\u003c\/strong\u003e: 1.38 inches (35 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.318 inches (8.08 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.238 inches (6.05 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Length\u003c\/strong\u003e: 9.53 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Cobalt High Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiCN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Blind Hole Threading, Through-Hole Threading\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Aluminum, Cast Aluminum, Hardened Steel, Carbon Steel, Alloy Steel, Die Steel, Stainless Steel, High-Nickel Alloy, Titanium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 16350 (EXOPRO XPF)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.073 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: OSG\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1635008259\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51747339338034,"sku":"1635008259","price":129.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f9c893fd0eabc1e8fcc607e0545c464a.jpg?v=1788878797","url":"https:\/\/voomisupply.com\/products\/osg-1635008259-thread-forming-tap-m8x1-25-metric-coarse","provider":"Voomi Supply","version":"1.0","type":"link"}