{"product_id":"hertel-42235-cobalt-screw-machine-drill-bit-35-64-in","title":"Hertel 42235 Cobalt Screw Machine Drill Bit 35\/64 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL 42235 is a cobalt screw machine length drill bit designed for demanding metal drilling applications in production and maintenance environments. Built from M35 cobalt high-speed steel with an oxide straw finish, this bit handles elevated cutting temperatures without sacrificing hardness or edge retention. The 135-degree split point reduces walking on contact and lowers thrust requirements, making it well-suited for drilling harder materials where standard HSS bits wear prematurely. At 4.0 inches overall length with a 2.5-inch spiral flute, this is a stub-length geometry that maximizes rigidity and minimizes deflection in short-reach setups. Licensed machinists, tool and die technicians, and industrial maintenance mechanics are the primary users.\u003c\/p\u003e\n\u003cp\u003eThis bit is engineered for hardened materials, heat-treatable alloyed steels, stainless steel, and titanium alloy. The 35\/64 inch (0.5469 inch) diameter and screw machine length profile make it a practical choice for CNC drilling, drill press work, and hand-held power drilling where rigidity matters. The regular spiral flute geometry provides consistent chip evacuation in the materials listed. It is sold individually and ships as a single unit per package.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eM35 cobalt steel construction handles hardened materials and heat-treatable alloys\u003c\/li\u003e\n  \u003cli\u003e135-degree split point reduces thrust and prevents bit walking on hard surfaces\u003c\/li\u003e\n  \u003cli\u003eOxide straw finish improves lubricity and heat resistance during cutting\u003c\/li\u003e\n  \u003cli\u003eScrew machine (stub) length geometry maximizes rigidity and reduces deflection\u003c\/li\u003e\n  \u003cli\u003eRegular spiral flute with 3xD flute-to-diameter ratio for efficient chip removal\u003c\/li\u003e\n  \u003cli\u003eNo coolant-through design suitable for standard dry or flood-coolant setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-use cobalt drill bit for industrial drilling applications involving hardened materials, heat-treatable alloyed steels, stainless steel, and titanium alloy where a 35\/64 inch diameter stub-length bit is specified.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists or industrial maintenance technicians using a drill press, CNC machining center, or hand-held drill with an appropriate chuck size for 35\/64 inch shanks. Ensure the workpiece is securely clamped before drilling to prevent rotation and bit breakage. When drilling stainless steel or titanium, use a cutting fluid rated for those materials to extend bit life. Inspect the split point before each use and replace the bit if the cutting edges show signs of chipping or heat discoloration beyond the normal straw finish.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Inch)\u003c\/strong\u003e: 35\/64\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.5469 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Cobalt (M35)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating \/ Finish\u003c\/strong\u003e: Oxide Straw\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\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4.0 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute By Diameter Ratio\u003c\/strong\u003e: 3xD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Hardened Materials, Heat-Treatable Alloyed Steels, Stainless Steel, Titanium Alloy\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.14 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\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: 42235\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51749971919154,"sku":"42235","price":56.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b640c7ad81150b2b413c3a35ea69c339.jpg?v=1788912805","url":"https:\/\/voomisupply.com\/products\/hertel-42235-cobalt-screw-machine-drill-bit-35-64-in","provider":"Voomi Supply","version":"1.0","type":"link"}