{"product_id":"kennametal-6140616-spiral-flute-tap-8-32-cobalt-oxide","title":"Kennametal 6140616 Spiral Flute Tap 8-32 Cobalt Oxide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 6140616 is a spiral flute tap designed for threading 8-32 holes in ferrous materials. It features a 45-degree helix angle that evacuates chips upward out of the hole, making it well-suited for blind-hole tapping where chip packing is a concern. The tap is manufactured from cobalt high-speed steel for increased heat and wear resistance compared to standard M2 HSS. An oxide coating provides additional lubricity and mild corrosion resistance. With a modified bottoming chamfer, this tap can thread closer to the bottom of a blind hole than a plug or taper chamfer style. Overall length is 2.13 inches and thread length is 0.38 inches.\u003c\/p\u003e\u003cp\u003eThis tap is intended for use in steel, stainless steel, and cast iron — workpiece material codes P, M, and K. It is suited for production tapping operations in machine shops, maintenance and repair environments, and toolroom applications where a reliable, consistent thread form in an 8-32 size is required. The H3 thread limit designates a tolerance range appropriate for class 2B and 3B fits in standard unified thread applications. No coolant-through capability is present, so conventional flood coolant or cutting oil applied externally is the standard approach.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e45-degree right-hand spiral flute geometry for upward chip evacuation in blind holes\u003c\/li\u003e\n\u003cli\u003eModified bottoming chamfer for threading close to hole bottom\u003c\/li\u003e\n\u003cli\u003eCobalt HSS construction for improved wear resistance in hard or abrasive ferrous materials\u003c\/li\u003e\n\u003cli\u003eOxide coating for added lubricity and surface protection\u003c\/li\u003e\n\u003cli\u003eH3 thread limit for consistent class 2B and 3B thread fits\u003c\/li\u003e\n\u003cli\u003eRight-hand thread direction, compatible with standard tapping attachments and CNC turrets\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for tapping 8-32 unified national coarse threads in steel, stainless steel, and cast iron workpieces. Compatible with standard machine tapping chucks, floating tap holders, and rigid tapping setups that accept the 0.168-inch shank diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tap is installed by a machinist or toolroom technician in a drill press, CNC machining center, or hand tapping setup. Always ensure the drilled hole is at the correct tap drill diameter for an 8-32 thread before tapping. Apply an appropriate cutting fluid or tapping oil for the workpiece material — sulfurized oil is commonly used for steel and stainless steel. Secure the workpiece and confirm spindle alignment before engaging the tap to avoid tap breakage or cross-threading.\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\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfer Type\u003c\/strong\u003e: Modified Bottoming\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 45 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H3\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: Oxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.13 inches (54 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.38 inches (9.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.168 inches (4.27 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1.19 inches (30 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeck Length\u003c\/strong\u003e: 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTapping Depth\u003c\/strong\u003e: 0.77 inches (20 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.129 inches (3.28 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Materials\u003c\/strong\u003e: Steel, Stainless Steel, Cast Iron\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: 0.01 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: KENNAMETAL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 6140616\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51728688775474,"sku":"6140616","price":58.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/32bcfbcf7fde86e0d2fa48811545429e_fed5f70d-9db6-4f2f-9e5a-577a797c6ae5.jpg?v=1788695034","url":"https:\/\/voomisupply.com\/products\/kennametal-6140616-spiral-flute-tap-8-32-cobalt-oxide","provider":"Voomi Supply","version":"1.0","type":"link"}