{"product_id":"osg-1754808-spiral-flute-tap-8-32-unc-modified-bottoming","title":"Osg 1754808 Spiral Flute Tap 8-32 Unc Modified Bottoming","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 1754808 is a spiral flute tap designed for threading 8-32 UNC holes in demanding materials. Built from powdered metal and finished with a TiCN (titanium carbonitride) coating, this tap handles alloy steel, stainless steel, hardened steel, titanium, and high-nickel alloys where standard high-speed steel tooling falls short. The modified bottoming chamfer allows threading closer to the bottom of blind holes. With a 15-degree helix angle and right-hand flute direction, the spiral geometry evacuates chips up and out of the hole during the tapping cycle, reducing the risk of chip packing in deep or tight applications. Licensed machinists and tool-room technicians are the primary users of this tap.\u003c\/p\u003e\u003cp\u003eThis tap is suited for production and job-shop environments where difficult-to-machine materials are common. The 8-32 UNC thread form is widely used in instrumentation, fastener assemblies, and light mechanical components. The modified bottoming chamfer makes it appropriate for blind-hole applications where full thread depth near the bottom of the hole is required. The H5 thread limit designation indicates a controlled oversize tolerance that accommodates coatings and maintains dimensional accuracy in tighter fits.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTiCN coating improves wear resistance and lubricity for extended tool life in hard and abrasive materials\u003c\/li\u003e\n\u003cli\u003ePowdered metal substrate provides uniform grain structure and higher toughness than conventional HSS\u003c\/li\u003e\n\u003cli\u003eModified bottoming chamfer enables threading near the base of blind holes\u003c\/li\u003e\n\u003cli\u003e15-degree helix angle promotes upward chip evacuation during cutting\u003c\/li\u003e\n\u003cli\u003eH5 thread limit for controlled oversize tolerance — compatible with standard 8-32 UNC fit classes\u003c\/li\u003e\n\u003cli\u003eRight-hand thread and right-hand flute direction for standard CW tapping operations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in 8-32 UNC tapping applications in alloy steel, stainless steel, hardened steel, titanium, and high-nickel alloy workpieces. Fits standard tap holders and tapping chucks accepting a 0.168-inch shank diameter with a 0.131-inch square drive.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tap is installed by machinists or toolroom technicians using a tapping machine, CNC machining center, or hand tap wrench rated for the shank diameter. Ensure the correct tap drill size for 8-32 UNC is used prior to tapping. Secure the workpiece and verify spindle alignment before engaging the tap to prevent breakage. Cutting fluid or tapping compound appropriate for the workpiece material should be applied throughout the operation.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 8-32\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\u003eFlute Style\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 15 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfer\u003c\/strong\u003e: Modified Bottoming\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 32\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Powdered Metal\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: 2.125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.252 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.168 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Length\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.131 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOversize\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.015 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: EXOTAP 313\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Alloy Steel, Stainless Steel, Hardened Steel, Titanium, High-Nickel Alloy\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: 1754808\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51748998709554,"sku":"1754808","price":62.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1675dcb40b75dea3dc3435eabbfdcfb3.jpg?v=1788900914","url":"https:\/\/voomisupply.com\/products\/osg-1754808-spiral-flute-tap-8-32-unc-modified-bottoming","provider":"Voomi Supply","version":"1.0","type":"link"}