{"product_id":"eagle-cutting-tool-c304-128-d-cobalt-jobber-drill-no-28","title":"Eagle Cutting Tool C304-128-D Cobalt Jobber Drill No. 28","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe EAGLE CUTTING TOOL C304-128-D is a No. 28 cobalt jobber-length drill bit manufactured in the USA. Cobalt-grade construction provides increased hardness and heat resistance compared to standard high-speed steel, making this bit suitable for drilling into tough ferrous metals, stainless steel, cast iron, and similarly hard materials. The jobber-length flute geometry balances reach and rigidity for general-purpose hole-making in production and maintenance environments. Machinists, pipefitters, ironworkers, and trade professionals working with metal fabrication rely on cobalt drills for consistent performance where standard HSS bits fail prematurely.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is suited for use in drill presses, hand-held power drills, and CNC equipment in both shop and field settings. The No. 28 wire gauge size addresses precision hole requirements common in metalworking, mechanical assembly, and tap-and-drill operations where specific clearance or thread-tap sizing is required. It is appropriate for light commercial and industrial applications wherever a small-diameter cobalt drill is needed.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCobalt construction for improved heat resistance and durability in hard-metal drilling\u003c\/li\u003e\n  \u003cli\u003eNo. 28 wire gauge diameter for precision hole sizing and tap-drill applications\u003c\/li\u003e\n  \u003cli\u003eJobber-length flute design balances depth capacity with bit rigidity\u003c\/li\u003e\n  \u003cli\u003eUSA manufactured\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-use cobalt jobber drill compatible with standard drill chucks and collet systems accepting No. 28 wire gauge shank sizes.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation of this drill bit should be performed by qualified machinists or trade professionals familiar with proper cutting tool practices. Secure the bit fully in the chuck or collet before operation and verify runout before beginning a cut. Use appropriate cutting fluid when drilling hard metals to extend bit life and reduce heat buildup. Follow shop safety protocols including eye protection and secure workpiece fixturing.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Size\u003c\/strong\u003e: No. 28 wire gauge\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Type\u003c\/strong\u003e: Cobalt Jobber\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e: USA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.42 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: EAGLE CUTTING TOOL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: C304-128-D\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"EAGLE CUTTING TOOL","offers":[{"title":"Default Title","offer_id":51233693925682,"sku":"C304-128-D","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/307620925.png?v=1780106861","url":"https:\/\/voomisupply.com\/products\/eagle-cutting-tool-c304-128-d-cobalt-jobber-drill-no-28","provider":"Voomi Supply","version":"1.0","type":"link"}