{"product_id":"cleveland-c14212-cobalt-screw-machine-drill-bit-letter-e","title":"Cleveland C14212 Cobalt Screw Machine Drill Bit Letter E","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CLEVELAND C14212 is a cobalt screw machine length drill bit sized at letter E (0.25 inches decimal), built for heavy-duty drilling in tough materials. The 135-degree split point starts cleanly without a center punch and reduces walking on hard surfaces. A parabolic flute geometry improves chip evacuation, making this bit well suited for deep-hole applications where chip buildup causes heat and tool failure. The web-thinned parallel web configuration reduces thrust requirements at the cutting edge. Overall length is 2.5 inches with a 1.375-inch flute length, keeping the bit rigid and reducing deflection in short-reach screw machine setups. Right-hand cut with a straight cylindrical shank sized at 0.25 inches diameter. Manufactured to ASME B94.11M standards.\u003c\/p\u003e\n\u003cp\u003eThis bit is designed for production drilling environments including screw machines, drill presses, and CNC machining centers where stub-length rigidity is required. Primary workpiece materials include alloy steel and aluminum. The M42 cobalt material grade provides elevated heat resistance compared to standard high-speed steel, extending tool life when cutting harder alloys or when coolant-through capability is not available. This is a single-piece unit sold individually and is appropriate for use in shop maintenance, fabrication, and light production tooling applications.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eLetter E (0.25 inch) diameter with tight tolerance of +0.0000 to -0.0007 inches\u003c\/li\u003e\n  \u003cli\u003e135-degree split point for self-centering starts without a pilot punch\u003c\/li\u003e\n  \u003cli\u003eM42 cobalt material grade for extended tool life in alloy steel and aluminum\u003c\/li\u003e\n  \u003cli\u003eParabolic flute with web thinning for improved chip evacuation and reduced thrust\u003c\/li\u003e\n  \u003cli\u003eScrew machine (stub) length at 2.5 inches OAL for maximum rigidity\u003c\/li\u003e\n  \u003cli\u003eMeets ASME B94.11M dimensional standard\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement and standard tooling option for screw machines, drill presses, and CNC spindles accepting a 0.25-inch straight cylindrical shank. Suitable for drilling alloy steel and aluminum per Series 2175 application guidelines.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall in a compatible chuck or collet rated for 0.25-inch straight shanks and ensure the shank is fully seated before operation. Machinists and tooling technicians should verify spindle speed and feed rate against workpiece material hardness to avoid premature edge wear. No coolant-through capability is present on this bit, so external coolant or cutting fluid application is recommended when drilling harder alloys. Inspect the cutting edges for wear before each use and replace when the split point shows rounding or chipping.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Letter)\u003c\/strong\u003e: E\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.2500 inches\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\u003eTool Material\u003c\/strong\u003e: Cobalt\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: M42\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Parabolic\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.2500 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1.375 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1.125 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Parallel Web-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Screw Machine\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Grade\u003c\/strong\u003e: Heavy Duty\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: +0.0000 to -0.0007 inches\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: Alloy Steel, Aluminum\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 2175\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: ASME B94.11M\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.6 pounds\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: CLEVELAND\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: C14212\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CLEVELAND CONTROLS","offers":[{"title":"Default Title","offer_id":51711614910770,"sku":"C14212","price":25.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ef8a80d9829ee2ab2a16364a741dd3c9.jpg?v=1788477628","url":"https:\/\/voomisupply.com\/products\/cleveland-c14212-cobalt-screw-machine-drill-bit-letter-e","provider":"Voomi Supply","version":"1.0","type":"link"}