{"product_id":"chicago-latrobe-41621-jobber-drill-21-64-in-tin-hss","title":"Chicago-latrobe 41621 Jobber Drill 21\/64 in Tin Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe CHICAGO-LATROBE 41621 is a high-speed steel jobber-length drill bit from the 150ASP-TN series, engineered for demanding metal-cutting applications. It carries a titanium nitride (TiN) coating that reduces friction and extends tool life compared to uncoated HSS. The 135-degree split point promotes fast penetration and self-centering on hard materials, minimizing the need for a center punch. At 4.625 inches overall length with a 3.3125-inch flute, this bit fits standard jobber-length chuck applications and meets NAS 907 Type B standards. It is a go-to choice for trades cutting through tough materials on the job.\u003c\/p\u003e\u003cp\u003eThis drill bit is designed for drilling stainless steel, cast iron, and similarly hard ferrous metals where standard general-purpose bits lose their edge quickly. The TiN coating and split-point geometry make it well suited for HVAC, plumbing, electrical, and fabrication professionals who regularly drill structural steel, pipe hangers, brackets, and enclosures. Its straight shank fits standard three-jaw drill chucks on corded or cordless drills and drill presses without adapters.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTiN coating reduces heat buildup and extends cutting life on hard metals\u003c\/li\u003e\n\u003cli\u003e135-degree split point self-centers and reduces walking on smooth or curved surfaces\u003c\/li\u003e\n\u003cli\u003eWeb-thinned, tapered web lowers thrust requirements and improves chip evacuation\u003c\/li\u003e\n\u003cli\u003eHigh-speed steel construction with heavy-duty grade rating per NAS 907 Type B\u003c\/li\u003e\n\u003cli\u003eRegular spiral flute promotes efficient chip removal during through-hole drilling\u003c\/li\u003e\n\u003cli\u003eStraight cylindrical shank seats securely in standard drill chucks\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a jobber-length replacement or direct-use drill bit for applications requiring a 21\/64-inch diameter hole in stainless steel, cast iron, and similar hard ferrous materials. Fits any standard three-jaw chuck accepting a straight shank of 0.3281-inch diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eA licensed electrician, plumber, pipefitter, or mechanical tradesperson typically installs fasteners and penetrations using drill bits of this type. Always secure the workpiece before drilling and wear appropriate eye and hand protection. Use cutting fluid or a compatible coolant when drilling stainless steel or cast iron to manage heat and protect the TiN coating. Inspect the bit for edge wear or chipping before each use; a damaged split point will reduce accuracy and accelerate tool failure.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 21\/64 inch (0.3281 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4.625 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 3.3125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.3281 inch straight cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Angle\u003c\/strong\u003e: 135 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Split Point\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Regular Spiral, 2 Flutes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: High Speed Steel (HSS)\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\u003ePrimary Workpiece Material\u003c\/strong\u003e: Stainless Steel, Cast Iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: -0.0010 to 0.0000 inch\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\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.5 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: 41621\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CHICAGO-LATROBE","offers":[{"title":"Default Title","offer_id":51753830711602,"sku":"41621","price":20.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1a3ddd26d300bb0cf85585977defcab6.jpg?v=1788941256","url":"https:\/\/voomisupply.com\/products\/chicago-latrobe-41621-jobber-drill-21-64-in-tin-hss","provider":"Voomi Supply","version":"1.0","type":"link"}