{"product_id":"eagle-cutting-tool-c304-139-d-cobalt-jobber-drill-size-39","title":"Eagle Cutting Tool C304-139-D Cobalt Jobber Drill Size 39","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe EAGLE CUTTING TOOL C304-139-D is a size 39 cobalt jobber-length drill bit manufactured in the USA. Cobalt construction gives this bit superior heat and wear resistance compared to standard high-speed steel, making it well suited for drilling harder alloys, stainless steel, cast iron, and other tough materials. The jobber-length geometry provides a balanced combination of reach and rigidity, reducing deflection during drilling operations. This bit is a standard tool for machinists, pipefitters, electricians, HVAC technicians, and plumbers who need reliable, repeatable hole quality in metal substrates.\u003c\/p\u003e\n\u003cp\u003eThe C304-139-D is appropriate for use in both stationary drill press setups and handheld drill applications where a size 39 wire gauge hole is required. It is commonly used in fabrication shops, mechanical rooms, and field service work where drilling into ferrous and non-ferrous metals is part of routine tasks. USA manufacture indicates adherence to domestic tooling standards for dimensional accuracy and material consistency.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCobalt construction for improved heat resistance and extended tool life in hard materials\u003c\/li\u003e\n  \u003cli\u003eJobber-length geometry balances reach with rigidity to minimize bit deflection\u003c\/li\u003e\n  \u003cli\u003eSize 39 wire gauge diameter for precise, repeatable hole sizing\u003c\/li\u003e\n  \u003cli\u003eManufactured in the USA to domestic dimensional and material standards\u003c\/li\u003e\n  \u003cli\u003eCompatible with standard drill chucks used in handheld and bench-mounted equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or standard tooling addition for any application requiring a wire gauge size 39 cobalt jobber drill bit in handheld drills or drill press equipment.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis bit is installed and used by machinists, pipefitters, electricians, and HVAC or plumbing technicians. Always secure the workpiece before drilling and ensure the bit is properly seated and tightened in the chuck before operation. Use appropriate cutting fluid when drilling hardened or stainless alloys to extend bit life. Inspect the cutting edges for wear before each use and replace the bit if chipping or dulling is observed.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Size\u003c\/strong\u003e: 39 (wire gauge)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Type\u003c\/strong\u003e: Jobber Length\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Cobalt\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: 0.12 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 1\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: C304-139-D\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"EAGLE CUTTING TOOL","offers":[{"title":"Default Title","offer_id":51233605288242,"sku":"C304-139-D","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/307620852.png?v=1780104426","url":"https:\/\/voomisupply.com\/products\/eagle-cutting-tool-c304-139-d-cobalt-jobber-drill-size-39","provider":"Voomi Supply","version":"1.0","type":"link"}