{"product_id":"precision-twist-drill-5996349-jobber-drill-bit-letter-j","title":"Precision Twist Drill 5996349 Jobber Drill Bit Letter J","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe PRECISION TWIST DRILL 5996349 is a jobber-length twist drill bit sized at Letter J (0.2770 inches diameter), designed for general-purpose drilling in ferrous and hard metals. It is made from M2 high speed steel with a bronze\/purple coating and features a 135-degree split-point tip with web thinning to reduce walking and lower thrust requirements at startup. The straight cylindrical shank fits standard three-jaw drill chucks. With an overall length of 4.125 inches and a flute length of 2.875 inches, this bit is suited for production and maintenance drilling in metalworking shops, fabrication facilities, and mechanical service environments.\u003c\/p\u003e\u003cp\u003eThis drill bit is built for cutting steel, stainless steel, cast iron, superalloys, and titanium. It falls within the HX10-HX15-HX18 series and is appropriate for use in both handheld and machine-mounted drill applications including drill presses, CNC machining centers, and manual lathes. The 10xD flute-to-diameter ratio and regular spiral flute geometry support chip evacuation in deeper holes up to 2.875 inches. Machinists, toolroom technicians, and maintenance mechanics typically select this size for through-hole and blind-hole work in medium to hard material grades.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eLetter J size at 0.2770 inches diameter for precise fit in standard ANSI drill charts\u003c\/li\u003e\n\u003cli\u003eM2 high speed steel construction handles heat generated in steel and stainless steel applications\u003c\/li\u003e\n\u003cli\u003e135-degree standard split point with web thinning reduces center pressure and improves hole entry accuracy\u003c\/li\u003e\n\u003cli\u003eBronze-coated flutes provide lubricity and help extend tool life in abrasive materials\u003c\/li\u003e\n\u003cli\u003e2-flute regular spiral geometry promotes consistent chip evacuation during through-hole drilling\u003c\/li\u003e\n\u003cli\u003eStraight cylindrical shank with zero flats fits any standard drill chuck without modification\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an ANSI-standard jobber-length drill bit compatible with any 3-jaw drill chuck or collet that accepts a 0.2770-inch straight cylindrical shank. Suitable for use across the HX10-HX15-HX18 series applications in steel, stainless steel, cast iron, superalloys, and titanium workpieces.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis bit is installed and serviced by machinists and maintenance mechanics working on drill presses, mills, or CNC equipment. Secure the shank fully in the chuck and verify runout before cutting. Always use appropriate cutting fluid or coolant when drilling stainless steel, cast iron, or titanium to preserve tool life. Inspect the cutting edges for wear or chipping before each use and replace the bit if the point geometry is compromised.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Letter)\u003c\/strong\u003e: J\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal)\u003c\/strong\u003e: 0.2770 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Material\u003c\/strong\u003e: M2 High Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bronze\/Purple\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 135 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Standard Web-Thinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Regular Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4.125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2.875 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 2.875 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.2770 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flats\u003c\/strong\u003e: 0\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 10xD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Materials\u003c\/strong\u003e: Steel, Stainless Steel, Cast Iron, Superalloys, Titanium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: HX10-HX15-HX18\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: ANSI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.042 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: 5996349\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51712540180786,"sku":"5996349","price":15.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/164a426c244a50dcd1df57227d075760_1414da9a-993c-4ee8-870e-78f6ed3d8797.jpg?v=1788486556","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-5996349-jobber-drill-bit-letter-j","provider":"Voomi Supply","version":"1.0","type":"link"}