{"product_id":"emuge-bu109101-5003-4-40-unc-machine-tap-ticn-cobalt","title":"Emuge BU109101.5003 4-40 Unc Machine Tap Ticn Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe EMUGE BU109101.5003 is a straight flute machine tap designed for cutting 4-40 UNC internal threads in production and maintenance applications. Built from cobalt high-speed steel and coated with titanium carbonitride (TiCN), it delivers extended tool life when threading ferrous and non-ferrous workpieces. The modified bottoming chamfer allows threading closer to the bottom of blind holes than a standard plug tap. With a 2-flute straight flute geometry and a right-hand thread direction, this tap suits CNC machining centers, drill presses, and manual tapping operations where chip evacuation is manageable and hole depth is limited.\u003c\/p\u003e\u003cp\u003eThis tap is suited for blind hole and through-hole threading in steel, stainless steel, and non-ferrous metals. The 4-40 UNC thread form at 40 threads per inch is common in instrument panels, electronics enclosures, and light mechanical assemblies. The TiCN coating reduces friction and built-up edge, making it a practical choice when threading stainless steel or other work-hardening materials. It is intended for use by machinists and maintenance technicians working with hand-tapping equipment or machine-fed tapping heads.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eModified bottoming chamfer for threading close to the bottom of blind holes\u003c\/li\u003e\n\u003cli\u003eTiCN coating extends wear resistance and reduces friction during cutting\u003c\/li\u003e\n\u003cli\u003eCobalt HSS substrate provides heat and wear resistance in tough materials\u003c\/li\u003e\n\u003cli\u003e2-flute straight flute design for reliable chip control in shallow-to-moderate depth holes\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, Class 2B fit, H3 thread limit for standard tolerance threading\u003c\/li\u003e\n\u003cli\u003eRated for steel, stainless steel, and non-ferrous metals\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for blind hole and through-hole threading applications requiring a 4-40 UNC thread form in steel, stainless steel, and non-ferrous metals. Part of EMUGE Series BU109101.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003ePower down and lock out any machine tool before installing or changing taps. Secure the tap in a properly sized tap holder or collet that matches the shank diameter to prevent runout. Apply appropriate cutting fluid for the workpiece material, particularly when threading stainless steel, to prevent galling and premature wear. Do not exceed the recommended feed rate for the thread pitch; forced feeding will break small-diameter taps.\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\u003eThreads per Inch\u003c\/strong\u003e: 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: H3\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\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Style\u003c\/strong\u003e: Straight Flute\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Cobalt HSS\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: 2.205 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.433 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeck Length\u003c\/strong\u003e: 0.709 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\u003eSquare Size\u003c\/strong\u003e: 0.110 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Non-Ferrous Metal, Stainless Steel, Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Blind Hole Threading, Through-Hole Threading\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: BU109101\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.066 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: EMUGE\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: BU109101.5003\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"EMUGE","offers":[{"title":"Default Title","offer_id":51972180640050,"sku":"BU109101.5003","price":72.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/3423f880693a2701a267151a67d8752d.jpg?v=1789963829","url":"https:\/\/voomisupply.com\/products\/emuge-bu109101-5003-4-40-unc-machine-tap-ticn-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}