{"product_id":"titan-usa-tc79231-jobber-drill-bit-31-wire-solid-carbide","title":"Titan Usa TC79231 Jobber Drill Bit 31 Wire Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe TITAN USA TC79231 is a solid carbide jobber-length drill bit designed for high-performance drilling in demanding metalworking applications. Sized to wire gauge 31 (0.1200 inches decimal), it features an ALTiN (aluminum titanium nitride) coating that extends tool life by reducing heat buildup and friction at the cutting edge. The 118-degree standard point angle provides reliable center-finding and clean entry in a wide range of workpiece materials. At 2.25 inches overall length with a 1.25-inch flute length, this bit fits standard drill chucks and CNC toolholders with a straight cylindrical shank. It is used by machinists, tool-and-die technicians, and maintenance professionals who need consistent, repeatable hole quality in hard metals.\u003c\/p\u003e\u003cp\u003eThe TC79231 is built for drilling steel, stainless steel, cast iron, superalloys, and titanium. Its 2-flute regular spiral geometry and 10xD flute-to-diameter ratio handle chip evacuation effectively in deep-hole passes up to 1.25 inches. The straight cylindrical shank with zero flats seats securely in collets and drill chucks on manual mills, drill presses, and CNC machining centers. General-purpose grade construction makes it a practical stock item for shops running mixed-material production or maintenance drilling.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eWire gauge 31 diameter at 0.1200 inches decimal with a tight tolerance of -0.0005 to +0.0000 inches\u003c\/li\u003e\n\u003cli\u003eSolid carbide substrate delivers rigidity and wear resistance beyond high-speed steel in hard and abrasive materials\u003c\/li\u003e\n\u003cli\u003eALTiN coating reduces thermal load at the cutting edge, extending service life in steel and stainless steel\u003c\/li\u003e\n\u003cli\u003e118-degree standard point angle for broad compatibility across workpiece materials and general-purpose drilling\u003c\/li\u003e\n\u003cli\u003e2-flute regular spiral geometry with 10xD ratio supports efficient chip removal up to 1.25 inches maximum drilling depth\u003c\/li\u003e\n\u003cli\u003eStraight cylindrical shank fits standard collets, drill chucks, and CNC toolholders without modification\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a general-purpose jobber drill bit compatible with standard drill chucks, ER collets, and CNC toolholders accepting a 0.1200-inch straight cylindrical shank. Suitable for use in drill presses, manual mills, and CNC machining centers targeting steel, stainless steel, cast iron, superalloys, and titanium workpieces.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use should be performed by qualified machinists or tooling technicians familiar with proper speeds and feeds for solid carbide tooling in the target workpiece material. Ensure the drill chuck or collet is clean and properly torqued before operation, and confirm the machine spindle is stopped and locked out before loading or removing the bit. Solid carbide is more brittle than high-speed steel and should not be used in setups with excessive runout or lateral load. Coolant-through is not supported on this bit; external coolant or cutting fluid application is recommended when drilling stainless steel, superalloys, or titanium.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: 31\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.1200 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: ALTiN\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\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\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: 2.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 1.25 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: 0.1200 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1.00 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flats\u003c\/strong\u003e: 0\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 10xD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter Tolerance\u003c\/strong\u003e: -0.0005 to +0.0000 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel, Stainless Steel, Cast Iron, Superalloys and Titanium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Application\u003c\/strong\u003e: Drilling\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Performance\u003c\/strong\u003e: General Purpose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: TC79\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.02 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: TITAN USA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: TC79231\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TITAN USA","offers":[{"title":"Default Title","offer_id":51734629089586,"sku":"TC79231","price":36.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/73d5c16c95d0cdebe7278996cd10d948.jpg?v=1788764043","url":"https:\/\/voomisupply.com\/products\/titan-usa-tc79231-jobber-drill-bit-31-wire-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}