{"product_id":"hertel-71206387-jobber-drill-bit-wire-21-0-1590-hss","title":"Hertel 71206387 Jobber Drill Bit Wire 21 0.1590 Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL 71206387 is a jobber-length drill bit sized to wire gauge 21, with a decimal diameter of 0.1590 inches. Constructed from high speed steel with an oxide coating, it is built for general-purpose drilling in metal, wood, and plastic. The 118-degree standard point angle provides a reliable entry geometry suited to a wide range of workpiece materials. With a straight-cylindrical shank and two spiral flutes in a regular helix pattern, this bit seats securely in standard drill chucks and evacuates chips efficiently during through-hole and blind-hole operations. Licensed machinists, maintenance technicians, HVAC fabricators, and electricians commonly reach for wire-gauge bits in this size range for pilot holes, sheet metal work, and conduit preparation.\u003c\/p\u003e\u003cp\u003eThis bit is sized within the 0.1500 to 0.2000 inch decimal range and fits applications where precise small-diameter holes are required. A tapered web with web-thinning reduces thrust at the cutting tip, making it easier to start holes cleanly without a center punch on softer substrates. The 3-1\/4 inch overall length and 2-1\/8 inch flute length give adequate reach for most light fabrication and service tasks. Each unit is sold individually and is intended for use in hand drills, drill presses, or machine tool setups.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eWire gauge 21 diameter — 0.1590 inches decimal — for precise small-hole drilling\u003c\/li\u003e\n\u003cli\u003eHigh speed steel construction with oxide coating for wear resistance and reduced friction\u003c\/li\u003e\n\u003cli\u003e118-degree standard point angle for broad material compatibility\u003c\/li\u003e\n\u003cli\u003eTwo spiral flutes with regular helix and tapered web for efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eWeb-thinned tip reduces cutting thrust and improves hole-start accuracy\u003c\/li\u003e\n\u003cli\u003eStraight-cylindrical shank fits standard three-jaw drill chucks without adapters\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a general-purpose replacement or stock bit for standard three-jaw drill chucks accepting a 0.1590-inch straight-cylindrical shank across hand drills, drill presses, and light machine tool setups.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis bit is installed and removed by a licensed machinist, maintenance technician, or qualified trade professional using a standard chuck key or keyless chuck. Secure the workpiece before drilling and confirm the chuck is fully tightened before operation. Use appropriate cutting fluid when drilling ferrous metals to extend bit life and improve hole quality. Inspect the cutting edges for wear before each use and replace the bit if the point is chipped or the flutes are clogged.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire Gauge)\u003c\/strong\u003e: 21\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.1590 inches\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\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\u003eNumber of Flutes\u003c\/strong\u003e: 2\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\u003eFlute Length\u003c\/strong\u003e: 2.125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.25 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: 0.1590 inches\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\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Grade\u003c\/strong\u003e: General Purpose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.18 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: HERTEL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 71206387\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51727353577778,"sku":"71206387","price":31.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/678e86a8d6a7ebaa95575b7ce4aa6a83.jpg?v=1788676643","url":"https:\/\/voomisupply.com\/products\/hertel-71206387-jobber-drill-bit-wire-21-0-1590-hss","provider":"Voomi Supply","version":"1.0","type":"link"}