{"product_id":"osg-1651500108-spiral-point-tap-4-40-unc-ticn","title":"Osg 1651500108 Spiral Point Tap 4-40 Unc Ticn","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 1651500108 is a spiral point tap designed for threading 4-40 UNC holes in a wide range of metals. It features a plug chamfer, 2-flute geometry, and a right-hand thread direction, making it well suited for through-hole tapping applications where chips need to be pushed ahead of the cutting edge. The tap is manufactured from powdered metal (grade PMT15) and finished with a TiCN coating to extend tool life and reduce friction in demanding materials. The 2B class of fit and H2 thread limit deliver consistent, in-tolerance threads for standard fastener applications. Installation is performed by machinists and tool-room technicians.\u003c\/p\u003e\n\u003cp\u003eThis tap is engineered for use in alloy steel, aluminum, cast aluminum, cast iron, high-carbon steel, low-carbon steel, medium-carbon steel, stainless steel, hardened steel, and die steel. Its high-performance spiral point geometry makes it a practical choice for CNC machining centers and manual tapping operations alike, wherever controlled chip evacuation is needed in through-hole work. The compact overall length of 2.25 inches suits standard tap holders and hand-tapping accessories used in production and maintenance environments.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e4-40 UNC thread form with right-hand cutting direction and 2B class of fit\u003c\/li\u003e\n  \u003cli\u003ePowdered metal construction (PMT15 grade) for improved wear resistance over high-speed steel\u003c\/li\u003e\n  \u003cli\u003eTiCN coating reduces friction and extends tool life across a broad material range\u003c\/li\u003e\n  \u003cli\u003ePlug chamfer with 2-flute spiral point geometry pushes chips forward for clean through-hole threading\u003c\/li\u003e\n  \u003cli\u003eH2 thread limit ensures consistent fit with standard 4-40 fasteners\u003c\/li\u003e\n  \u003cli\u003eNo coolant-through requirement simplifies use in standard tapping setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for through-hole tapping in alloy steel, aluminum, cast aluminum, cast iron, hardened steel, high-carbon steel, low-carbon steel, medium-carbon steel, stainless steel, and die steel. Part of OSG Series 16515 high-performance spiral point taps.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eSpiral point taps should only be used in through-hole applications where chips can exit freely from the back of the hole. Power down or de-energize any CNC spindle and secure the workpiece before tool changes. Use appropriate tapping fluid or cutting oil for the material being threaded. Follow applicable machining safety standards and shop SOPs for tap installation, torque limits, and speed selection.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 4-40\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClass of Fit\u003c\/strong\u003e: 2B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer Style\u003c\/strong\u003e: Plug\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: 2.25 inches (56 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.295 inches (7.6 mm)\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: Powdered Metal (PMT15)\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\u003eSeries\u003c\/strong\u003e: 16515\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.011 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: 1651500108\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51740874342706,"sku":"1651500108","price":48.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9a3c1e2c93602beaa2210bbdc6956d8a.jpg?v=1788828048","url":"https:\/\/voomisupply.com\/products\/osg-1651500108-spiral-point-tap-4-40-unc-ticn","provider":"Voomi Supply","version":"1.0","type":"link"}