{"product_id":"guhring-9039920028450-spiral-point-tap-4-40-unc-tin","title":"Guhring 9039920028450 Spiral Point Tap 4-40 Unc Tin","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe GUHRING 9039920028450 is a spiral point tap designed for through-hole threading in metal workpieces. It cuts a 4-40 UNC thread profile with a right-hand direction and a plug chamfer for ease of entry. The tap is manufactured from powdered metal and coated with titanium nitride (TiN) for improved wear resistance and tool life. At 2.205 inches overall length with a 5\/16-inch thread length, it fits standard tapping chucks and hand tap wrenches. The 3-flute spiral point geometry pushes chips forward ahead of the tap, making it well suited to through-hole applications where chip evacuation is critical.\u003c\/p\u003e\u003cp\u003eThis tap is intended for through-hole threading operations in heat-treatable hardened steel, high-tensile steel, and tool steel. It carries a 2B class of fit and an H2\/H3 thread limit, providing the tolerance range most commonly specified for general-purpose UNC fastener threads. Typical use cases include production tapping on CNC machining centers, drill press setups, and manual tapping operations in maintenance and fabrication environments. It is used by machinists, toolmakers, and maintenance technicians working in industrial and manufacturing settings.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e4-40 UNC thread profile with right-hand cutting direction\u003c\/li\u003e\n\u003cli\u003ePowdered metal construction for improved toughness and wear resistance\u003c\/li\u003e\n\u003cli\u003eTiN coating extends tool life in ferrous materials\u003c\/li\u003e\n\u003cli\u003e3-flute spiral point geometry promotes forward chip ejection in through-hole applications\u003c\/li\u003e\n\u003cli\u003eH2\/H3 thread limit suits 2B class-of-fit tolerance requirements\u003c\/li\u003e\n\u003cli\u003ePlug chamfer allows straightforward thread starting\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for through-hole threading in heat-treatable hardened steel, high-tensile steel, and tool steel. Thread limit H2\/H3 and 2B class of fit are standard for general-purpose UNC fastener thread applications. Part of GUHRING Series 3992.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tap should be installed and operated by qualified machinists or toolmakers familiar with tapping operations and cutting tool safety. Ensure the workpiece and any machine spindle are properly secured before beginning the tapping operation. Use an appropriate cutting fluid or tapping compound rated for ferrous materials to reduce heat buildup and extend tool life. Never reverse the tap under power without confirming the machine is set for reverse-tapping cycles, and inspect the tap for wear or chipping before each use.\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\u003eThreads per Inch\u003c\/strong\u003e: 40\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfer\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: H2\/H3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Through-Hole Threading\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Powdered Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: TiN (Titanium Nitride)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Heat-Treatable Hardened Steel, High-Tensile Steel, Tool Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.205 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.3125 inches (5\/16)\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\u003eSeries\u003c\/strong\u003e: 3992\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1 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: GUHRING\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 9039920028450\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GUHRING","offers":[{"title":"Default Title","offer_id":51744921289010,"sku":"9039920028450","price":44.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ded08d1be1695664952518152aec1229.jpg?v=1788862239","url":"https:\/\/voomisupply.com\/products\/guhring-9039920028450-spiral-point-tap-4-40-unc-tin","provider":"Voomi Supply","version":"1.0","type":"link"}