{"product_id":"precision-twist-drill-5999190-wire-79-hss-jobber-drill-bit","title":"Precision Twist Drill 5999190 Wire 79 Hss Jobber Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe PRECISION TWIST DRILL 5999190 is a wire gauge size 79 jobber length drill bit ground from high speed steel with a steam oxide coating. At 0.0145 inches in diameter and 0.75 inches overall length, this is a precision small-diameter bit designed for drilling tight, accurate holes in metal workpieces. The 118-degree standard point angle and two-flute spiral design promote clean entry and efficient chip evacuation. The web-thinned, tapered web construction reduces thrust requirements at the point. This bit is used by machinists, tool-and-die technicians, and precision fabricators who require consistent performance at very small diameters.\u003c\/p\u003e\u003cp\u003eThis bit is suited for drilling operations in steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium. Its general-purpose grade and ANSI-compliant geometry make it a go-to for production drilling, fixture work, and precision hole layouts where wire gauge sizing is specified. The straight-cylindrical shank seats directly in standard drill chucks and collets without special adapters. With a maximum drilling depth of 0.125 inches and a 9xD flute-to-diameter ratio, this bit is intended for shallow, through-hole work in hard and exotic materials at small diameters.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eWire gauge size 79, decimal diameter 0.0145 inches for precision small-hole work\u003c\/li\u003e\n\u003cli\u003e118-degree standard point angle with web-thinned, tapered web for reduced thrust\u003c\/li\u003e\n\u003cli\u003eSteam oxide coating helps reduce friction and improve lubricity in metal drilling\u003c\/li\u003e\n\u003cli\u003eHigh speed steel construction handles steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium\u003c\/li\u003e\n\u003cli\u003eTwo-flute regular spiral design promotes chip clearing in shallow drilling applications\u003c\/li\u003e\n\u003cli\u003eStraight-cylindrical shank fits standard drill chucks and collets; ANSI specification compliant\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a general-purpose replacement or production bit for applications requiring wire gauge size 79 drill geometry per ANSI standards, compatible with Series R10, R15, and R18 tooling families.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation of this bit is performed by machinists and precision fabricators using standard drill presses, CNC machining centers, or hand-held drilling equipment with appropriate collet or chuck tooling. Secure the straight-cylindrical shank firmly in the chuck before operation to prevent runout at this small diameter. Use appropriate cutting fluid or coolant for the workpiece material to extend tool life; this bit does not support through-coolant delivery. Inspect the point for chipping or wear before each use, as small-diameter bits are susceptible to breakage under side loading or excessive feed rate.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire Gauge)\u003c\/strong\u003e: 79\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.0145 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 0.125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 0.625 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.0145 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 118 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\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\u003eWeb Configuration\u003c\/strong\u003e: Tapered, Web-Thinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Steam Oxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: High Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 0.125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 9xD\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: R10, R15, R18\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: 0.04167 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: 5999190\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51708072984882,"sku":"5999190","price":64.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f2bbd17554f8298fe95bb319a732ccea_8137bc99-b27f-498b-85f3-9fca8ff90884.jpg?v=1788443904","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-5999190-wire-79-hss-jobber-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}