{"product_id":"cle-line-c20660-reduced-shank-drill-bit-9-16-in-hss","title":"Cle-line C20660 Reduced Shank Drill Bit 9\/16 in Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CLE-LINE C20660 is a reduced shank twist drill bit designed for drilling applications that require a smaller shank diameter than the cutting diameter. The bit measures 9\/16 inches in diameter with a 3\/8-inch straight-cylindrical shank, allowing it to fit into standard 3\/8-inch chucks while cutting a larger hole. Constructed from high-speed steel (HSS), it features a 135-degree split point for fast self-centering starts and reduced walking on entry. Overall length is 6-5\/8 inches. Right-hand cut with a regular spiral flute configuration. Installed by machinists, maintenance technicians, and trade professionals in metal fabrication and general production environments.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is suited for use in drill presses, hand drills, and machine tool setups where a 3\/8-inch chuck capacity limits shank size but a larger bore diameter is required. The reduced shank design makes it practical for shops and field technicians working with standard three-jaw chucks. Typical materials drilled include mild steel, aluminum, and similar metals. The coated finish helps reduce friction and extend cutting life under moderate-duty drilling conditions. Series 1809 from CLE-LINE.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eReduced shank design: 9\/16-inch cutting diameter with a 3\/8-inch shank for use in standard chucks\u003c\/li\u003e\n  \u003cli\u003e135-degree split point for self-centering entry and reduced thrust force\u003c\/li\u003e\n  \u003cli\u003eHigh-speed steel construction for durability across metals and general materials\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut with regular spiral flutes and 2-flute configuration\u003c\/li\u003e\n  \u003cli\u003eCoated finish to reduce friction and extend tool life\u003c\/li\u003e\n  \u003cli\u003eDiameter tolerance of +0.0000 to -0.0012 inches for consistent bore sizing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-use drill bit compatible with 3\/8-inch chuck drill presses, hand drills, and machine tools requiring a reduced shank configuration for 9\/16-inch diameter boring.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eSecure the shank fully in the chuck jaws before operation and verify chuck tightness with a chuck key where applicable. Always power down and lock out the drill press or machine before changing bits. Use appropriate cutting fluid or lubricant when drilling ferrous metals to manage heat buildup and extend bit life. Inspect the cutting edges and split point for wear or chipping before each use.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 9\/16 inches (0.5625 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/8 inches (0.3750 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6-5\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 4.812 inches (122.24 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1.8122 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\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral (Regular)\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\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\u003eDiameter Tolerance\u003c\/strong\u003e: +0.0000 to -0.0012 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Reduced Shank\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 1809\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.22 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: C20660\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CLE-LINE","offers":[{"title":"Default Title","offer_id":52078503428402,"sku":"C20660","price":82.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0b09127df4fe5b2235fddfa870bcd0ed.jpg?v=1790054158","url":"https:\/\/voomisupply.com\/products\/cle-line-c20660-reduced-shank-drill-bit-9-16-in-hss","provider":"Voomi Supply","version":"1.0","type":"link"}