{"product_id":"precision-twist-drill-5995788-wire-21-hss-drill-bit","title":"Precision Twist Drill 5995788 Wire 21 Hss Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe PRECISION TWIST DRILL 5995788 is a jobber-length drill bit in wire gauge size 21, measuring 0.1590 inches in diameter. Built from M2 high speed steel with a bronze (purple\/bronze) coating, it is engineered for general-purpose drilling in steel, stainless steel, cast iron, superalloys, and titanium. The 135-degree split-point tip reduces walking on entry and minimizes the need for a center punch. With a 3.25-inch overall length and 2.125-inch spiral flute, this bit is suited for production drilling in machine shops, maintenance environments, and fabrication settings. Licensed trades and industrial drill press operators are the primary installers.\u003c\/p\u003e\u003cp\u003eThis drill bit is designed for right-hand cutting with a straight cylindrical shank, making it compatible with standard three-jaw drill chucks and collet-style tooling. It fits applications requiring precision hole placement in ferrous and exotic workpiece materials. The tapered web and web-thinned geometry reduce thrust load during drilling, which is especially useful when working through harder alloys. It fits within the HX10, HX15, and HX18 series product lines and is suited for through-hole and blind-hole work up to a maximum drilling depth of 2.125 inches.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eWire gauge size 21 (0.1590 inches) with matching straight cylindrical shank diameter\u003c\/li\u003e\n\u003cli\u003eM2 high speed steel construction for heat and wear resistance in hard materials\u003c\/li\u003e\n\u003cli\u003e135-degree standard point angle with web-thinned, tapered web for reduced entry thrust\u003c\/li\u003e\n\u003cli\u003eBronze coating provides lubricity and surface hardness for extended tool life\u003c\/li\u003e\n\u003cli\u003e2-flute regular spiral geometry with 13xD flute-to-diameter ratio\u003c\/li\u003e\n\u003cli\u003eMeets ANSI standards for jobber-length drill bit geometry\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in steel, stainless steel, cast iron, superalloys, and titanium workpieces. Compatible with any standard drill chuck or collet accepting a 0.1590-inch straight cylindrical shank. Part of the PRECISION TWIST DRILL HX10, HX15, and HX18 series.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis bit is installed and operated by machinists, maintenance technicians, and metalworking professionals using drill presses, CNC machining centers, or handheld power drills. Secure the shank firmly in the chuck before operation and verify chuck runout is within acceptable limits to prevent premature wear. Always use appropriate cutting fluid or coolant when drilling stainless steel, cast iron, or titanium to manage heat buildup. Do not exceed the recommended maximum drilling depth of 2.125 inches for this bit length.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\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\u003eMaterial Grade\u003c\/strong\u003e: M2 High Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bronze (Purple\/Bronze)\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\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered, Web-Thinned\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\u003eFlute Length\u003c\/strong\u003e: 2.125 inches (2-1\/8 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.25 inches (3-1\/4 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\u003eShank Length\u003c\/strong\u003e: 1.125 inches (1-1\/8 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 2.125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute By Diameter Ratio\u003c\/strong\u003e: 13xD\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\u003eNumber of Flats\u003c\/strong\u003e: 0\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\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: 0.016 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: 5995788\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51711056970034,"sku":"5995788","price":47.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/81de5d15882edb9af16c3e5a7a8ee62a_4df7f766-7653-42b9-bcd3-b63ab118aa38.jpg?v=1788473985","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-5995788-wire-21-hss-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}