{"product_id":"precision-twist-drill-5999285-screw-machine-drill-bit","title":"Precision Twist Drill 5999285 Screw Machine Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe PRECISION TWIST DRILL 5999285 is a screw machine length drill bit designed for high-speed steel cutting applications requiring a compact, stub-length profile. Measuring 0.052 inches in diameter with an overall length of 1-5\/8 inches and a flute length of 5\/8 inch, this bit fits into tight work envelopes where standard-length bits cannot operate. The 118-degree point angle and web-thinned, tapered web construction reduce entry force and improve chip evacuation. Manufactured from high-speed steel with a bright, uncoated finish, it is suited for general-purpose drilling in production and machine shop environments. Machinists and toolroom technicians are the primary installers.\u003c\/p\u003e\n\u003cp\u003eThe 5999285 is built for use in screw machines, CNC lathes, drill presses, and similar production equipment where short, rigid tooling is preferred. Its 2.5xD flute-to-diameter ratio and spiral flute geometry support efficient chip removal in repetitive, high-cycle drilling operations. The primary workpiece material rating includes titanium, making it appropriate for aerospace, medical device, and precision machining applications where difficult materials are common. The straight-cylindrical shank provides secure seating in standard chucks and collets.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e0.052-inch diameter wire gauge size #55 for precision small-hole drilling\u003c\/li\u003e\n  \u003cli\u003e118-degree standard point angle with web-thinned, tapered web for reduced thrust force\u003c\/li\u003e\n  \u003cli\u003eScrew machine (stub) length profile: 1-5\/8 inches overall, 5\/8 inch flute length\u003c\/li\u003e\n  \u003cli\u003eHigh-speed steel construction rated for general-purpose and titanium workpiece materials\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut, spiral flute, straight-cylindrical shank compatible with standard chucks and collets\u003c\/li\u003e\n  \u003cli\u003eMeets ANSI standards; Series R41 high-performance designation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a general-purpose screw machine length drill bit compatible with standard drill chucks, collets, and toolholders accepting a straight-cylindrical shank in production machining and toolroom equipment.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use should be performed by qualified machinists or toolroom technicians familiar with small-diameter drill bit handling. Secure the shank fully in the chuck or collet before operation to prevent runout and bit breakage, which is a significant risk at this diameter. Power down and de-energize the machine before changing tooling. Do not exceed the recommended speed and feed parameters for the workpiece material, as small-diameter bits are sensitive to side loading and deflection.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.052 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: #55\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1-5\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 5\/8 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 118 degrees\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\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Standard\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: Web-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute By Diameter Ratio\u003c\/strong\u003e: 2.5xD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Titanium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Screw Machine\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: R41\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.042 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: 5999285\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51720307278130,"sku":"5999285","price":38.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/05cafea0ffdf0b08c3191da3cad00d0a.jpg?v=1788562382","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-5999285-screw-machine-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}