{"product_id":"precision-twist-drill-5999903-reduced-shank-drill-bit","title":"Precision Twist Drill 5999903 Reduced Shank Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe PRECISION TWIST DRILL 5999903 is a reduced shank twist drill bit designed for general-purpose drilling in metalworking and fabrication applications. The bit measures 1-3\/64 inches (1.0469 inches decimal) in cutting diameter with a 1\/2-inch straight-cylindrical shank, allowing use in standard chucks that cannot accommodate the full cutting diameter. Ground from high speed steel (HSS) with a bright, uncoated finish, this bit delivers consistent performance across a wide range of ferrous and non-ferrous materials. The 118-degree standard point angle suits most everyday drilling tasks without requiring specialized point preparation.\u003c\/p\u003e\n\u003cp\u003eThis bit is intended for trade professionals and machinists working in HVAC fabrication shops, plumbing rough-in, electrical panel work, or general metal fabrication where large-diameter holes are needed but only a 1\/2-inch chuck is available. The Series R56 designation identifies it within the PRECISION TWIST DRILL line of reduced shank jobber-style bits. Suitable for drilling ferrous metals, aluminum, copper, nickel, magnesium, titanium, and synthetic materials. The 3-inch flute length accommodates a maximum drilling depth of 3 inches, making it appropriate for most standard material thicknesses encountered in trade work.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eReduced shank design: 1\/2-inch shank accepts standard drill chucks while cutting a 1-3\/64 inch diameter hole\u003c\/li\u003e\n  \u003cli\u003eHigh speed steel construction for durability across ferrous and non-ferrous workpiece materials\u003c\/li\u003e\n  \u003cli\u003e118-degree standard point angle for general-purpose drilling without special point grinding\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut with regular spiral flute geometry 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\u003e6-inch overall length with 3-inch flute length supports a maximum drilling depth of 3 inches\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in any drill press, milling machine, or portable drill with a 1\/2-inch or larger chuck. Compatible with ferrous metals, aluminum, copper, magnesium, nickel, titanium, and synthetic materials per Series R56 general-purpose specifications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use should be performed by a qualified machinist or tradesperson familiar with drill press and portable drill operation. Secure the workpiece properly before drilling to prevent rotation or movement. Follow ANSI safety standards for drilling operations, including use of appropriate eye protection and secure chuck engagement. Apply cutting fluid when drilling hard ferrous metals to extend tool life and improve hole quality.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size\u003c\/strong\u003e: 1-3\/64 inches (1.0469 inches decimal)\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\u003eFlute Type\u003c\/strong\u003e: Spiral (Regular)\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: Bright\/Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: R56\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 Required\u003c\/strong\u003e: No\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: 5999903\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51702078898482,"sku":"5999903","price":134.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d2a13a544fb10f45c9873b9eb7e2c15b.jpg?v=1788408852","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-5999903-reduced-shank-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}