{"product_id":"hertel-74149030-screw-machine-drill-bit-27-64-solid-carbide","title":"Hertel 74149030 Screw Machine Drill Bit 27\/64 Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL 74149030 is a screw machine length drill bit designed for high-performance drilling in demanding materials. Built from solid carbide with a bright\/uncoated finish, this bit measures 27\/64 inch (0.4219 inches) in diameter and features a 135-degree split point that reduces walking and improves hole entry accuracy. The slow spiral flute geometry controls chip evacuation and maintains cutting pressure in tough substrates. At 3-3\/8 inches overall length with a 2-inch flute length, this stub-length format provides added rigidity compared to jobber-length bits, making it well suited for production drilling and precision machining work.\u003c\/p\u003e\u003cp\u003eThis drill bit is engineered for machining cast iron, nickel alloys, stainless steel, titanium alloys, and tool steel. Its screw machine length profile fits standard drill press chucks and CNC machining center spindles, and the straight cylindrical shank ensures consistent runout in collet or keyless chuck setups. The web-thinned, parallel web configuration reduces thrust requirements, which is critical when boring into hard or work-hardening alloys. This bit is typically purchased by machinists, tool and die shops, and metalworking trades for repetitive production drilling cycles.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction for superior hardness and heat resistance in ferrous and exotic alloys\u003c\/li\u003e\n\u003cli\u003e135-degree split point reduces drill walk and lowers entry thrust force\u003c\/li\u003e\n\u003cli\u003eSlow spiral flute design promotes chip control in deep-hole and interrupted cuts\u003c\/li\u003e\n\u003cli\u003eWeb-thinned parallel web reduces cutting resistance in hard materials\u003c\/li\u003e\n\u003cli\u003eStraight cylindrical shank compatible with standard drill chucks and collets\u003c\/li\u003e\n\u003cli\u003eDiameter tolerance held to +0.0000 to -0.0005 inches for precision hole sizing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in cast iron, nickel alloy, stainless steel, titanium alloy, and tool steel workpieces. Fits any drill press, CNC machining center, or hand drill with a chuck capacity accepting a 27\/64 inch straight cylindrical shank.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use of this bit should be performed by qualified machinists or metalworking technicians familiar with carbide tooling. Ensure the machine spindle and chuck are clean and free of debris before seating the shank to maintain concentricity. Carbide tooling is brittle and susceptible to chipping under side-loading or impact; do not use in handheld impact drivers. Follow machine manufacturer guidelines and applicable shop safety codes when setting speeds and feeds for carbide drill bits.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size\u003c\/strong\u003e: 27\/64 inch (0.4219 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: C2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 135 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Split\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Slow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2.0 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3-3\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Parallel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: Web-Thinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: +0.0000 to -0.0005 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Cast Iron, Nickel Alloy, Stainless Steel, Titanium Alloy, Tool Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.2 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: HERTEL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 74149030\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51740721086770,"sku":"74149030","price":84.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4bdcc8358518a23d6487c50822a56a59.jpg?v=1788826940","url":"https:\/\/voomisupply.com\/products\/hertel-74149030-screw-machine-drill-bit-27-64-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}