{"product_id":"chicago-latrobe-45678-jobber-drill-bit-8-wire-hss-135","title":"Chicago-latrobe 45678 Jobber Drill Bit 8 Wire Hss 135","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CHICAGO-LATROBE 45678 is a jobber-length drill bit in wire gauge size 8, equivalent to 0.1990 inches in decimal, designed for production and maintenance drilling in demanding materials. Built from high-speed steel with an oxide finish, it runs a 135-degree split-point tip that reduces walking on entry and lowers the thrust needed to start the cut. The tapered web and web-thinned geometry keep the cutting edge aggressive through the full depth of the hole. At 3.625 inches overall length with a 2.4375-inch flute, this bit fits standard drill chucks and magnetic drill presses used daily in metal fabrication and mechanical contracting shops.\u003c\/p\u003e\n\u003cp\u003eThis bit is suited for right-hand drilling into cast iron, stainless steel, and carbon steel in both shop and field environments. The straight cylindrical shank seats securely in keyless or keyed Jacobs-style chucks. The two-flute spiral design with regular helix clears chips efficiently in through-hole and blind-hole operations. It meets NAS 907 Type B specification, making it appropriate for aerospace-adjacent maintenance work and heavy-duty industrial applications where dimensional tolerances and bit grade matter. Installers in mechanical, structural steel, and HVAC fabrication trades will find it a reliable everyday choice for ferrous metal drilling.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eWire gauge size 8 (0.1990 inches) with a diameter tolerance of -0.0007 to 0.0000 inches for consistent hole size\u003c\/li\u003e\n  \u003cli\u003e135-degree split point reduces center-walking and lowers feed pressure on hard materials\u003c\/li\u003e\n  \u003cli\u003eHigh-speed steel construction with oxide coating for corrosion resistance and reduced friction\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned, tapered web geometry improves chip clearance and cutting efficiency\u003c\/li\u003e\n  \u003cli\u003eStraight cylindrical shank (0.1990 inches diameter) fits standard drill chucks without adapters\u003c\/li\u003e\n  \u003cli\u003eNAS 907 Type B compliant, heavy-duty grade rated for cast iron, stainless steel, and steel\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in standard 3-jaw drill chucks accepting straight cylindrical shanks. Primary workpiece materials listed by the manufacturer are cast iron, stainless steel, and carbon steel. Series 150ASP heavy-duty jobber-length format is a common replacement for worn or broken wire gauge 8 HSS bits in industrial and trade-shop drill inventories.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis bit is installed by licensed machinists, millwrights, ironworkers, HVAC fabricators, and maintenance mechanics. Secure the straight shank fully into the chuck before operation and confirm zero runout before cutting into stainless steel or cast iron to prevent premature dulling. Use cutting fluid or coolant rated for the workpiece material when drilling stainless steel to manage heat buildup. Inspect the split point for chipping after heavy use, as a damaged tip will increase thrust load and reduce hole quality.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: 8\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.1990 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: Split\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral, Regular Helix\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: 3.625 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2.4375 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.1990 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1.1875 inches\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\u003eDiameter Tolerance\u003c\/strong\u003e: -0.0007 to 0.0000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: High Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\/Coating\u003c\/strong\u003e: Oxide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Cast Iron, Stainless Steel, Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 150ASP\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrade\u003c\/strong\u003e: Heavy Duty\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: NAS 907 Type B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.0246 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: CHICAGO-LATROBE\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 45678\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CHICAGO-LATROBE","offers":[{"title":"Default Title","offer_id":51729219846450,"sku":"45678","price":48.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/782460eef0061e5342807dea23a26913_3ae42832-b0e2-4ca6-a0e9-aaa73faa4e49.jpg?v=1788702011","url":"https:\/\/voomisupply.com\/products\/chicago-latrobe-45678-jobber-drill-bit-8-wire-hss-135","provider":"Voomi Supply","version":"1.0","type":"link"}