{"product_id":"walter-titex-6618155-screw-machine-drill-bit-27-64-in","title":"Walter-titex 6618155 Screw Machine Drill Bit 27\/64 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe WALTER-TITEX 6618155 is a solid carbide screw machine length drill bit engineered for precision hole-making in cast iron and steel. It features a 27\/64 inch (0.4220 inch decimal) cutting diameter with a 140-degree special point angle optimized for aggressive penetration and accurate entry without a center punch. Three spiral flutes with a 3xD flute-by-diameter ratio clear chips efficiently in short-hole drilling applications. The straight-cylindrical shank measures 0.4720 inches in diameter and fits standard drill chucks and collet holders. This bit belongs to the DC150-03-A0 series and is built for production environments where consistent dimensional tolerances are required.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is suited for machining operations on cast iron and steel workpieces in both shop and field settings. The screw machine length format — shorter overall length for increased rigidity — makes it appropriate for CNC machining centers, drill presses, and manual lathes where stub-length tooling is preferred. The universal tool performance rating and m7 diameter tolerance make it a reliable choice for through-hole and blind-hole work in ferrous materials. Licensed machinists and tool-and-die professionals are the primary users. It does not support coolant-through delivery.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction for extended tool life in ferrous materials\u003c\/li\u003e\n  \u003cli\u003e140-degree special point angle for clean entry and reduced thrust force\u003c\/li\u003e\n  \u003cli\u003eThree spiral flutes with 3xD ratio for efficient chip evacuation in short holes\u003c\/li\u003e\n  \u003cli\u003eScrew machine length (4 inches OAL) provides rigidity and reduced deflection\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical shank compatible with standard chucks and collet systems\u003c\/li\u003e\n  \u003cli\u003eMeets DIN and ISO standards with m7 diameter tolerance for consistent fit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a screw machine length replacement or production drill bit for use in CNC machining centers, drill presses, and manual lathes accepting a 0.4720 inch straight-cylindrical shank. Primary workpiece materials are cast iron and steel per DC150-03-A0 series specifications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall in a properly rated chuck or collet holder that matches the 0.4720 inch shank diameter; confirm runout before beginning a production run. De-energize and lock out the machine before changing tooling per applicable shop safety procedures. This bit does not support coolant-through delivery, so ensure adequate external coolant or cutting fluid is applied when drilling steel at production feed rates. Inspect the cutting edges before each use — carbide tips are brittle and susceptible to chipping if subjected to interrupted cuts or improper feed rates.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size\u003c\/strong\u003e: 27\/64 inch (0.4220 inch decimal \/ 10.72 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 140 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\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: 1.2660 inches (1-17\/64 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 1.2660 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4 inches\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: 0.4720 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1.7717 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Length\u003c\/strong\u003e: 0.0768 inches (1.95 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Screw Machine\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute By Diameter Ratio\u003c\/strong\u003e: 3xD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Special\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Performance\u003c\/strong\u003e: Universal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: m7\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\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: DC150-03-A0\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: DIN, ISO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.273 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: WALTER-TITEX\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 6618155\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WALTER-TITEX","offers":[{"title":"Default Title","offer_id":51733969830194,"sku":"6618155","price":169.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a24684ca3ba08641c979b28ea0c0a712_8c8ec576-4c3b-4eab-95aa-1795459bee42.jpg?v=1788760236","url":"https:\/\/voomisupply.com\/products\/walter-titex-6618155-screw-machine-drill-bit-27-64-in","provider":"Voomi Supply","version":"1.0","type":"link"}