{"product_id":"precision-twist-drill-5999839-no-43-hss-jobber-drill-bit","title":"Precision Twist Drill 5999839 No. 43 Hss Jobber Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe PRECISION TWIST DRILL 5999839 is a No. 43 wire-size jobber-length drill bit manufactured from high speed steel with an oxide\/bronze coating. It measures 0.0890 inches in diameter and 2.25 inches overall, with a 5\/8-inch flute length and a 135-degree split point that reduces walking on entry and lowers thrust force compared to a conventional 118-degree point. The web-thinned, tapered-web construction improves chip evacuation. This bit ships individually and is sold in multiples of 12. It suits machine shops, maintenance technicians, and field tradespeople who drill in tight or precision-tolerance situations.\u003c\/p\u003e\u003cp\u003eThe 5999839 is built for general-purpose drilling in a broad range of materials including steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium. The regular-spiral, two-flute design with a straight cylindrical shank fits standard drill chucks and drill press spindles. With a 7xD flute-to-diameter ratio and a maximum drilling depth of 5\/8 inch, it is well suited to through-hole and shallow blind-hole applications in both production and maintenance environments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eNo. 43 wire size — 0.0890-inch diameter for close-tolerance hole sizing\u003c\/li\u003e\n\u003cli\u003e135-degree split point reduces thrust and minimizes bit walking on hard or smooth surfaces\u003c\/li\u003e\n\u003cli\u003eHigh speed steel construction with oxide\/bronze coating for heat and wear resistance\u003c\/li\u003e\n\u003cli\u003eWeb-thinned, tapered web design promotes efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eTwo-flute regular spiral compatible with standard straight-shank chucks\u003c\/li\u003e\n\u003cli\u003eMeets NAS 907 specification for dimensional and material consistency\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a general-purpose jobber-length drill bit compatible with any standard drill chuck or drill press accepting a 0.0890-inch straight cylindrical shank. Part of the PRECISION TWIST DRILL Series R88CO-R89CO.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use should be performed by qualified machinists or tradespeople familiar with rotating cutting tools. Secure the workpiece firmly before drilling and confirm the chuck is fully tightened on the shank before powering the spindle. Wear appropriate eye protection and never exceed the rated speed for the bit diameter and material combination being drilled. Inspect the cutting edges before each use and replace the bit if chipping or excessive wear is observed.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: No. 43\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.0890 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 0.625 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 0.625 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.0890 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1.625 inches\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 Split Point\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral — Regular\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\u003eShank Type\u003c\/strong\u003e: Straight Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered, Web-Thinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Material\u003c\/strong\u003e: High Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Oxide\/Bronze\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Materials\u003c\/strong\u003e: Steel, Stainless Steel, Cast Iron, Non-Ferrous Metal, Superalloys, Titanium, Hard Material\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDouble Margin\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 7xD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: R88CO-R89CO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: NAS 907\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: 5999839\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51698510856498,"sku":"5999839","price":62.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f3a5c855eb0082eb4dbe390928486b2a_81945b35-23ad-4074-9f0e-25b26245cfbf.jpg?v=1788364004","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-5999839-no-43-hss-jobber-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}