{"product_id":"cle-line-c20497-extra-length-drill-bit-1-2-in-hss-18-in","title":"Cle-line C20497 Extra Length Drill Bit 1\/2 in Hss 18 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CLE-LINE C20497 is an extra length, high-speed steel (HSS) twist drill bit designed for deep-hole drilling in ferrous metals and cast iron. Built to Series 1807 specifications, the bit features a 118-degree notched point with web thinning and a tapered web configuration for improved chip evacuation and reduced thrust on entry. The spiral flute geometry and oxide finish provide reliable performance in general-purpose production and maintenance drilling. At 18 inches overall length with a 14-inch flute, this bit handles applications that standard-length drills cannot reach. Installation and use are suited to machinists, millwrights, pipefitters, and industrial maintenance technicians.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is rated for use in cast iron and steel workpieces, making it appropriate for structural fabrication, pipe fitting, and heavy equipment maintenance environments. The straight-cylindrical shank measures 1\/2 inch in diameter, compatible with standard drill chucks and magnetic drill presses that accept that shank size. The right-hand cutting direction and regular spiral flute type suit conventional drill press, hand drill, and fixture-mounted drilling operations. The 14-inch flute length allows deep-reach drilling without requiring extensions in most field and shop applications.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e118-degree notched point with web thinning for reduced entry thrust and improved centering\u003c\/li\u003e\n  \u003cli\u003e14-inch spiral flute length enables deep-hole reach without extensions\u003c\/li\u003e\n  \u003cli\u003eHigh-speed steel construction with oxide finish for corrosion resistance and lubricity\u003c\/li\u003e\n  \u003cli\u003eTapered web configuration promotes efficient chip evacuation in ferrous materials\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical 1\/2-inch shank fits standard chucks and mag-drill setups\u003c\/li\u003e\n  \u003cli\u003eDiameter tolerance of +0.0000 to -0.0011 inches meets ASME B94.11M dimensional standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for drilling cast iron and steel workpieces in general-purpose machining and maintenance applications. Compatible with any drill press, hand drill, or magnetic drill unit accepting a 1\/2-inch straight-cylindrical shank.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eSecure the shank fully in a keyed or keyless chuck before operation and verify the chuck is tightened to prevent slippage under torque. Use cutting fluid or coolant appropriate for the workpiece material to extend bit life and control heat buildup. Right-hand rotation only  -  do not reverse rotation under load. Inspect the cutting edges and web thinning for wear before each use; a damaged tip should be reground or the bit replaced to maintain hole tolerance.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 1\/2 inch (0.5000 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 18 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 14 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1\/2 inch (0.5000 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 118 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Notched\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral, Regular\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered, Web-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\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: Oxide\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\u003eDiameter Tolerance\u003c\/strong\u003e: +0.0000 to -0.0011 inches\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: 1807\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrade\u003c\/strong\u003e: General Purpose\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ASME B94.11M; California Prop 65\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.726 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: CLE-LINE\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: C20497\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CLE-LINE","offers":[{"title":"Default Title","offer_id":51996338782514,"sku":"C20497","price":104.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5616c38247e53fd96b1553225bef706b.jpg?v=1789993320","url":"https:\/\/voomisupply.com\/products\/cle-line-c20497-extra-length-drill-bit-1-2-in-hss-18-in","provider":"Voomi Supply","version":"1.0","type":"link"}