{"product_id":"precision-twist-drill-5999944-reduced-shank-drill-bit","title":"Precision Twist Drill 5999944 Reduced Shank Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe PRECISION TWIST DRILL 5999944 is a reduced shank twist drill bit designed for general-purpose hole-making in metalworking and fabrication applications. The bit features an 11\/16 inch cutting diameter with a reduced 1\/2 inch straight-cylindrical shank, allowing it to be chucked in standard 1\/2 inch drill chucks despite the larger cutting diameter. Constructed from high speed steel with a bright uncoated finish, it runs a 118-degree standard point angle and right-hand spiral flutes. Overall length is 6 inches with a 3 inch flute length. Licensed tradespeople and machining professionals rely on this geometry for accurate entry and efficient chip evacuation in production and maintenance drilling tasks.\u003c\/p\u003e\u003cp\u003eThis drill bit is suited for drilling ferrous metals as its primary workpiece material, and also performs in aluminum, copper, magnesium, nickel, titanium, synthetic materials, and cermet. The reduced shank design extends the usable diameter range of a standard 1\/2 inch chuck without requiring a larger machine spindle. Typical install scenarios include structural fab shops, HVAC equipment assembly, electrical panel fabrication, plumbing rough-in, and general mechanical maintenance where holes larger than 1\/2 inch are needed from a standard drill press or handheld drill.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e11\/16 inch cutting diameter with 1\/2 inch reduced straight-cylindrical shank for standard chuck compatibility\u003c\/li\u003e\n\u003cli\u003e118-degree standard point angle for general-purpose entry on ferrous and non-ferrous metals\u003c\/li\u003e\n\u003cli\u003eHigh speed steel construction for durability across a broad range of workpiece materials\u003c\/li\u003e\n\u003cli\u003e3 inch flute length supports drilling depths up to 3 inches with regular spiral for efficient chip clearing\u003c\/li\u003e\n\u003cli\u003eRight-hand cut with bright uncoated finish — no coating to flake or delaminate under regrind\u003c\/li\u003e\n\u003cli\u003eSeries R56 designation for consistent reorder and replacement sourcing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a general-purpose replacement or service bit compatible with any 1\/2 inch keyed or keyless drill chuck. Meets ANSI standards for reduced shank twist drill geometry.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eA licensed machinist or qualified tradesperson should secure the 1\/2 inch shank fully in the chuck jaws before operation, ensuring no shank is exposed beyond the chuck body. Always power down and lock out the drill press or disconnect the handheld tool before changing bits. Use appropriate cutting fluid or coolant when drilling ferrous metals in sustained production runs, even though this bit is rated for dry use. Inspect the cutting edges before each use and regrind or replace when point geometry shows wear to avoid oversized or out-of-round holes.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size\u003c\/strong\u003e: 11\/16 inches (0.6875 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1\/2 inch (0.5000 inches)\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\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\u003eTool Performance\u003c\/strong\u003e: General Purpose\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\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 5999944\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51714136637746,"sku":"5999944","price":69.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6c7da2f41255a2cda72c641982de7129.jpg?v=1788496727","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-5999944-reduced-shank-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}