{"product_id":"precision-twist-drill-5999543-reduced-shank-drill-bit","title":"Precision Twist Drill 5999543 Reduced Shank Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe PRECISION TWIST DRILL 5999543 is a reduced shank twist drill bit machined from high-speed steel for general-purpose metal drilling applications. The bit measures 1-1\/2 inches in cutting diameter with a reduced 1\/2-inch Weldon flat shank, allowing it to seat in standard 1\/2-inch drill chucks and collet holders without requiring a full-size spindle bore. Overall length is 6 inches with a 3-inch flute length, providing adequate depth capacity for most production and maintenance drilling tasks. The 118-degree standard point angle is ground for fast engagement on ferrous metals and nonferrous alloys. This bit is part of the Series R57 line and ships in a bright, uncoated finish.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is suited for use in machine shops, fabrication facilities, maintenance departments, and field service environments where oversized holes are required but available machinery is limited to a 1\/2-inch chuck capacity. The reduced shank design makes a 1-1\/2-inch diameter cut accessible on standard drill presses, magnetic drills, and hand-held power drills without an adapter. Typical workpiece materials include ferrous metals, aluminum, copper, magnesium, nickel alloys, titanium, and synthetic materials. No coolant-through capability is included; external cutting fluid application is recommended for extended run cycles or harder alloys.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1-1\/2-inch cutting diameter with a 1\/2-inch reduced Weldon flat shank for compatibility with standard chucks\u003c\/li\u003e\n  \u003cli\u003e118-degree standard point angle for general-purpose drilling in ferrous and nonferrous materials\u003c\/li\u003e\n  \u003cli\u003eHigh-speed steel construction provides toughness and heat resistance during intermittent drilling operations\u003c\/li\u003e\n  \u003cli\u003e3-inch flute length supports a maximum drilling depth of 3 inches per pass\u003c\/li\u003e\n  \u003cli\u003eThree-flat Weldon shank geometry resists bit rotation and slippage under torque load\u003c\/li\u003e\n  \u003cli\u003eBright, uncoated finish; ANSI-compliant geometry; right-hand spiral flute for standard chuck rotation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a general-purpose reduced shank drill bit compatible with 1\/2-inch capacity drill chucks and Weldon-style collet holders on drill presses, magnetic base drills, and hand-held power drills. Rated for drilling ferrous metals, aluminum, copper, magnesium, nickel alloys, titanium, and synthetic materials.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists, maintenance technicians, or skilled trades personnel using a drill press, magnetic drill, or heavy-duty hand drill equipped with a 1\/2-inch Weldon-compatible chuck or collet. Secure the Weldon flat fully against the chuck set screw before operation to prevent shank slippage under load. Apply a suitable cutting fluid or lubricant when drilling hard alloys or running extended cycles without coolant-through capability. Inspect the cutting edges for wear before each use and replace the bit if chipping or excessive dullness is observed.\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\/2 inches (1.5000 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: Weldon Flat (3 flats)\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\u003ePrimary Workpiece Material\u003c\/strong\u003e: Ferrous Metal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: R57\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.5 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: ANSI\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: 5999543\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51696128688434,"sku":"5999543","price":284.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/111edff2768c324661ef70f54ecbab28_c67d9185-9ee0-44e2-a24e-98d1d9cbac17.jpg?v=1788340173","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-5999543-reduced-shank-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}