{"product_id":"osg-1410102408-thread-forming-tap-m4x0-70-metric-coarse","title":"Osg 1410102408 Thread Forming Tap M4x0.70 Metric Coarse","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 1410102408 is a bottoming-chamfer thread forming tap designed for M4x0.70 metric coarse internal threads in blind holes. Built from cobalt high-speed steel with a TiCN coating, it plastically displaces material rather than cutting chips, producing stronger threads with superior surface finish. The bottoming chamfer features 1 to 1.5 chamfered threads, allowing the tap to thread close to the bottom of a blind hole. Overall length is 2.126 inches (54.00 mm), with a thread length of 0.331 inches (8.40 mm) and a tapping depth of 0.772 inches (19.60 mm). It is intended for use by machinists and toolroom professionals in production and job-shop environments.\u003c\/p\u003e\u003cp\u003eThis tap is suited for blind-hole threading in a range of ferrous and non-ferrous workpiece materials, including alloy steel, carbon steel, die steel, hardened steel, stainless steel, and aluminum. The right-hand thread direction and 4H class of fit make it a standard choice for metric fastener tapping in precision components. It belongs to the OSG HY-PRO NRT series, which is designed for thread forming in ductile materials where chip-free operation is required. Typical applications include automotive, aerospace, and general manufacturing fixtures and assemblies.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eThread forming (chipless) action produces stronger, work-hardened threads versus cut-tap methods\u003c\/li\u003e\n\u003cli\u003eCobalt HSS construction provides heat resistance for dry or minimal-lubrication tapping in tough alloys\u003c\/li\u003e\n\u003cli\u003eTiCN coating reduces friction and extends tool life in stainless steel and hardened steel applications\u003c\/li\u003e\n\u003cli\u003eBottoming chamfer (1 to 1.5P) maximizes usable thread depth in blind holes\u003c\/li\u003e\n\u003cli\u003e4H class of fit and D4 thread limit suit standard metric fastener tolerance requirements\u003c\/li\u003e\n\u003cli\u003eRight-hand thread direction; no coolant-through requirement simplifies setup\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for M4x0.70 metric coarse blind-hole threading in workpiece materials including alloy steel, aluminum, carbon steel, die steel, hardened steel, and stainless steel, with material application codes P and N per ISO designation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThread forming taps require a properly sized forming tap drill — the correct drill diameter for form tapping differs from standard cut-tap drill charts and must be confirmed before use. Apply appropriate tapping fluid or cutting oil for the workpiece material; cobalt taps tolerate elevated heat but lubrication extends tool life. Secure the workpiece and use a tapping attachment or CNC rigid-tapping cycle to maintain axial alignment and prevent tap breakage. Verify spindle speed and feed rate against the tap manufacturer recommendations for the specific material being tapped.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: M4x0.70\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: Metric Coarse\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfer Type\u003c\/strong\u003e: Bottoming\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfered Threads\u003c\/strong\u003e: 1 to 1.5P\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass of Fit\u003c\/strong\u003e: 4H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: D4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\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\u003eOverall Length\u003c\/strong\u003e: 2.126 inches (54.00 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.331 inches (8.40 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTapping Depth\u003c\/strong\u003e: 0.772 inches (19.60 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.168 inches (4.27 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.131 inches (3.33 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Length\u003c\/strong\u003e: 6.35 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Blind Hole Threading\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Alloy Steel, Aluminum, Carbon Steel, Die Steel, Hardened Steel, Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: HY-PRO NRT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.015 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: OSG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1410102408\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51754548756786,"sku":"1410102408","price":38.61,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1387a1cbc85e69f037e155e448d18e22_a92b48fd-d478-4dba-8c5a-57c50f9c1eaa.jpg?v=1788946515","url":"https:\/\/voomisupply.com\/products\/osg-1410102408-thread-forming-tap-m4x0-70-metric-coarse","provider":"Voomi Supply","version":"1.0","type":"link"}