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The EAGLE CUTTING TOOL S304-120-I is a cobalt jobber-length drill bit in size 20. Cobalt construction provides heat resistance and edge retention when drilling through hard or abrasive materials, making it a practical choice for shops and field technicians working with ferrous metals, stainless steel, and hardened alloys. The jobber-length body offers a balance of reach and rigidity suited to general-purpose drilling applications. Licensed tradespeople in HVAC, plumbing, and electrical trades rely on cobalt bits when carbon-steel bits fail to hold an edge.
This drill bit fits standard chuck-equipped drills and drill presses used in residential and commercial service work. It is appropriate for metal fabrication, equipment installation, panel work, and structural penetrations where a durable cutting edge is required. The size 20 designation makes it suitable for common pilot holes and clearance holes encountered in trade service applications.
Designed as a general-purpose cobalt jobber drill bit suitable for use in standard drill presses and handheld power drills equipped with compatible chuck sizes.
Cobalt drill bits are installed by licensed technicians and machinists using standard drill equipment. Secure the workpiece firmly before drilling and use appropriate cutting fluid when working with hardened or stainless steel to extend bit life. Follow all applicable safety standards for rotating equipment, including eye protection and secure workholding. Inspect the cutting edge before each use and replace bits that show chipping or significant wear.
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