{"product_id":"osg-2885001-spiral-point-tap-4-40-unc-2-flute-hss","title":"Osg 2885001 Spiral Point Tap 4-40 Unc 2 Flute Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 2885001 is a spiral point plug tap designed for threading 4-40 UNC holes in metalworking applications. It is manufactured from high-speed steel with a steam oxide coating that helps reduce friction and resist wear during tapping operations. The tap features 2 flutes and a plug chamfer, making it well-suited for through-hole tapping where chips are pushed ahead of the cutting edge. With an H3 thread limit and a 2B class of fit, this tap produces threads that meet standard fastener tolerances for general mechanical assembly. Overall length is 1.875 inches with a thread length of 0.319 inches and a shank diameter of 0.141 inches. Machinists, tool-and-die makers, and maintenance professionals use this tap for precision small-diameter threading.\u003c\/p\u003e\u003cp\u003eThis tap is intended for right-hand threading in through-hole configurations across a range of common materials. It is rated for use in aluminum, cast aluminum, low-carbon steel, and medium-carbon steel. The spiral point geometry pushes chips forward rather than packing them into the flutes, which makes this tap a practical choice for production environments and repair work where clean chip evacuation matters. It is packaged as a single unit, suitable for both bench and machine tapping setups.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e4-40 UNC thread form with H3 thread limit for 2B class of fit tolerances\u003c\/li\u003e\n\u003cli\u003eSpiral point geometry pushes chips forward for efficient through-hole tapping\u003c\/li\u003e\n\u003cli\u003eHigh-speed steel construction provides durability across common ferrous and non-ferrous materials\u003c\/li\u003e\n\u003cli\u003eSteam oxide coating reduces friction and helps extend tool life\u003c\/li\u003e\n\u003cli\u003ePlug chamfer for standard entry and thread engagement\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, no coolant-through requirement, non-interrupted thread profile\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eRated for use in aluminum, cast aluminum, low-carbon steel, and medium-carbon steel. Designed for through-hole tapping in 4-40 UNC applications where a 2B class of fit is specified.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tap is installed by machinists and maintenance technicians using a tap wrench, tapping head, or CNC machine spindle. Ensure the workpiece is securely fixtured and the pilot hole is drilled to the correct tap drill diameter for 4-40 UNC before tapping. Apply appropriate cutting fluid for the material being tapped to extend tool life and improve thread finish. Do not force or back-drive the tap against binding resistance, as small-diameter taps are susceptible to breakage under torsional overload.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\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\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfer Type\u003c\/strong\u003e: Plug\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: H3\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: High-Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Steam Oxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.875 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.319 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\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.009 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Aluminum, Cast Aluminum, Low-Carbon Steel, Medium-Carbon Steel\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: 2885001\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51750672204082,"sku":"2885001","price":23.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5369adac8a8b983f61d221c6b235bee9.jpg?v=1788918197","url":"https:\/\/voomisupply.com\/products\/osg-2885001-spiral-point-tap-4-40-unc-2-flute-hss","provider":"Voomi Supply","version":"1.0","type":"link"}