{"product_id":"precision-twist-drill-5999856-reduced-shank-drill-bit","title":"Precision Twist Drill 5999856 Reduced Shank Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe PRECISION TWIST DRILL 5999856 is a reduced shank twist drill bit designed for general-purpose drilling in metalworking and fabrication applications. The bit measures 1-1\/64 inches (1.0156 inches decimal) in diameter with a 1\/2-inch straight-cylindrical reduced shank, allowing it to seat in standard 1\/2-inch drill chucks despite the larger cutting diameter. Manufactured from high-speed steel (HSS) with a bright, uncoated finish, it features a 118-degree standard point angle suited for drilling ferrous metals and a wide range of secondary materials. Overall length is 6 inches with a 3-inch flute length. Right-hand cut with a regular spiral flute pattern. Part of the Series R56 line.\u003c\/p\u003e\n\u003cp\u003eThis bit is used in machining, maintenance, and fabrication environments where a drill diameter larger than 1\/2 inch is needed but only a 1\/2-inch chuck is available. The reduced shank design bridges that gap without requiring a larger spindle or chuck upgrade. Suitable for drilling ferrous metals as the primary workpiece material. Secondary materials include aluminum, copper, magnesium, nickel, titanium, cermet, and synthetic materials. Typically used by machinists, millwrights, pipefitters, and maintenance technicians on drill presses, lathes, or heavy-duty hand drills.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1-1\/64 inch (1.0156 inch) cutting diameter with 1\/2-inch reduced shank for standard chuck compatibility\u003c\/li\u003e\n  \u003cli\u003eHigh-speed steel construction for durability across ferrous and non-ferrous materials\u003c\/li\u003e\n  \u003cli\u003e118-degree standard point angle for general-purpose drilling without requiring a pilot hole in most applications\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut with regular spiral flute pattern for efficient chip evacuation\u003c\/li\u003e\n  \u003cli\u003eBright, uncoated finish — suitable for use with or without cutting fluid\u003c\/li\u003e\n  \u003cli\u003eSeries R56 design meets ANSI standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in any 1\/2-inch capacity drill chuck. Compatible with drill presses, lathes, and heavy-duty hand drills accepting straight-cylindrical shanks. Suitable for ferrous metal as the primary workpiece material, with secondary suitability for aluminum, copper, magnesium, nickel, titanium, cermet, and synthetic materials per manufacturer specifications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eSecure the 1\/2-inch reduced shank fully into the chuck before operation and verify chuck is tightened with a chuck key where applicable. When drilling larger diameters in hard metals, a pilot hole is recommended to reduce walking and extend bit life. Always wear appropriate eye protection and follow applicable shop safety procedures. No coolant through-spindle is required for this bit, though external cutting fluid may be applied for ferrous metal drilling at depth.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 1-1\/64 inches (1.0156 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.5000 inches (1\/2 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 3 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: Standard\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: Bright\/Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Reduced Shank\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Performance\u003c\/strong\u003e: General Purpose\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Ferrous Metal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Materials\u003c\/strong\u003e: Aluminum, Cermet, Copper, Magnesium, Nickel, Synthetic, Titanium\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: R56\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.5 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: PRECISION TWIST DRILL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 5999856\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51691357765938,"sku":"5999856","price":138.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ccf83dca83ca94562ae5cbee255ba523.jpg?v=1788283739","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-5999856-reduced-shank-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}