{"product_id":"chicago-latrobe-41698-no-28-wire-drill-bit-tin-hss","title":"Chicago-latrobe 41698 No. 28 Wire Drill Bit Tin Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe CHICAGO-LATROBE 41698 is a jobber-length drill bit in wire gauge size No. 28, equivalent to 0.1405 inches in decimal diameter. It is manufactured from high-speed steel (HSS) with a titanium nitride (TiN) coating that increases surface hardness and reduces friction during cutting. The 135-degree split point reduces walking on entry and lowers required thrust force, making it well suited to hard or work-hardening materials. Overall length is 2-7\/8 inches with a flute length of 1-3\/4 inches. This bit is part of the Series 150ASP-TN, a heavy-duty line built to NAS 907 Type B standards. It is typically installed and used by machinists, maintenance technicians, and metal fabricators.\u003c\/p\u003e\u003cp\u003eThis drill bit is designed for use in cast iron, stainless steel, and carbon steel workpieces. The 135-degree split point and TiN coating make it a practical choice for production drilling and maintenance applications where tool life and hole quality in ferrous metals are priorities. The regular spiral, two-flute geometry handles chip evacuation efficiently in these materials. The straight cylindrical shank with a 1-1\/8 inch shank diameter fits standard drill chucks used in drill presses and handheld electric drills.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eWire size No. 28 (0.1405 inches decimal) for precise, small-diameter hole applications\u003c\/li\u003e\n\u003cli\u003e135-degree split point reduces thrust and minimizes bit walking on entry\u003c\/li\u003e\n\u003cli\u003eTiN coating extends cutting life and reduces heat buildup on ferrous materials\u003c\/li\u003e\n\u003cli\u003eHeavy-duty HSS construction meets NAS 907 Type B specification\u003c\/li\u003e\n\u003cli\u003eWeb-thinned, tapered web design improves cutting efficiency and chip flow\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, regular spiral with two flutes for clean chip evacuation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-use jobber drill bit compatible with standard drill chucks accepting a straight cylindrical shank. Primary workpiece materials listed by the manufacturer are cast iron, stainless steel, and steel.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis bit is installed by machinists and maintenance technicians in drill presses or handheld electric drills equipped with a compatible chuck. Secure the straight cylindrical shank firmly in the chuck before operation and verify the chuck is fully tightened. Use appropriate cutting fluid or coolant when drilling stainless steel or cast iron to manage heat and extend bit life. Inspect the cutting edges for wear before each use and replace when point geometry is degraded to avoid oversized or out-of-round holes.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: No. 28\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.1405 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2-7\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1-3\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1-1\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length (Decimal Inch)\u003c\/strong\u003e: 1.1250 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)\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\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: High Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Titanium Nitride (TiN)\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\u003ePrimary Workpiece Materials\u003c\/strong\u003e: Cast Iron, Stainless Steel, Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\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\u003eSeries\u003c\/strong\u003e: 150ASP-TN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241634\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1 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: CHICAGO-LATROBE\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 41698\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CHICAGO-LATROBE","offers":[{"title":"Default Title","offer_id":51727938126130,"sku":"41698","price":14.99,"currency_code":"USD","in_stock":true}],"url":"https:\/\/voomisupply.com\/products\/chicago-latrobe-41698-no-28-wire-drill-bit-tin-hss","provider":"Voomi Supply","version":"1.0","type":"link"}