{"product_id":"cle-line-c23472-screw-machine-drill-bit-letter-e-0-25-in","title":"Cle-line C23472 Screw Machine Drill Bit Letter E 0.25 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe CLE-LINE C23472 is a screw machine length drill bit sized at Letter E (0.2500 inches) and built from high-speed steel with a coated finish for extended wear resistance. It features a 135-degree split point with web thinning, which reduces walking on entry and lowers the thrust needed to start a hole. The overall length is 2.5 inches, making it suited to short-reach drilling applications where standard jobber bits would be prone to deflection. Two spiral flutes with a regular helix handle chip evacuation effectively. This bit conforms to ASME B94.11M and is rated for heavy-duty, high-performance use. It is installed by machinists, tool-and-die workers, and maintenance technicians.\u003c\/p\u003e\u003cp\u003eThis bit is designed for drilling into cast iron and steel, the primary workpiece materials for which it is rated. Screw machine length geometry gives the bit added rigidity over jobber-length alternatives, making it a preferred choice on drill presses, CNC machining centers, turret lathes, and screw machines where short, stiff tooling reduces runout and improves hole accuracy. The straight-cylindrical shank with a 0.2500-inch diameter seats directly into standard chucks and collets without adapters.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eLetter E sizing (0.2500 inches decimal) with a diameter tolerance of +0.0000 to -0.0007 inches for close-tolerance work\u003c\/li\u003e\n\u003cli\u003e135-degree split point with web thinning reduces walking and entry thrust on hard materials\u003c\/li\u003e\n\u003cli\u003eHigh-speed steel construction with coated finish for improved surface hardness and wear life\u003c\/li\u003e\n\u003cli\u003eScrew machine length (2.5 inches OAL) provides rigidity and reduces deflection in short-reach setups\u003c\/li\u003e\n\u003cli\u003eTwo spiral flutes with regular helix promote efficient chip removal in cast iron and steel\u003c\/li\u003e\n\u003cli\u003eConforms to ASME B94.11M standard for drill geometry and dimensional accuracy\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style screw machine length drill bit rated for cast iron and steel workpieces, compatible with any standard chuck or collet accepting a 0.2500-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 maintenance technicians familiar with rotating cutting tools. Secure the shank fully in a chuck or collet and verify runout before cutting. Always power down and lock out the machine before changing tooling. Follow applicable shop safety standards and the machine manufacturer guidelines for feed rate and spindle speed when drilling into ferrous materials.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\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\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\u003eShank Diameter\u003c\/strong\u003e: 0.2500 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\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: Regular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: Web-Thinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: High-Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Coated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Cast Iron, Steel\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\u003eSeries\u003c\/strong\u003e: 1896\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: ASME B94.11M\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: 0.224 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: CLE-LINE\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: C23472\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CLE-LINE","offers":[{"title":"Default Title","offer_id":52071935967538,"sku":"C23472","price":49.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a5b49ed8c4c760fcdaf2aa07358af8c7.jpg?v=1790049429","url":"https:\/\/voomisupply.com\/products\/cle-line-c23472-screw-machine-drill-bit-letter-e-0-25-in","provider":"Voomi Supply","version":"1.0","type":"link"}