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The EAGLE CUTTING TOOL C304-158-D is a 5/8-inch cobalt jobber-length drill bit manufactured in the USA. Cobalt construction gives this bit the heat resistance and hardness needed to cut through tough materials including stainless steel, cast iron, hardened alloys, and other hard metals that standard high-speed steel bits struggle with. The jobber-length geometry provides the balanced reach and rigidity most often specified for general-purpose drilling in fabrication, maintenance, and mechanical trade work. This bit is suited for use in hand-held drills, drill presses, and magnetic base drills.
This drill bit is used in metal fabrication shops, industrial maintenance environments, plumbing and HVAC rough-in work, and general trade applications where a durable, large-diameter bit is needed. The 5/8-inch diameter is commonly called for when drilling through structural steel, pipe flanges, angle iron, and similar material. USA manufacturing is relevant for job sites and contracts with domestic-sourcing requirements.
Designed as a general-purpose jobber-length drill bit compatible with standard 3-jaw drill chucks and magnetic base drill setups accepting 5/8-inch shank tooling.
Installation of this bit is performed by machinists, pipefitters, HVAC technicians, and general trade mechanics. Secure the bit firmly in the chuck before use and verify that the chuck key is removed before starting the drill. Use appropriate cutting fluid or coolant when drilling hard metals to extend bit life and maintain cutting edge integrity. Always wear eye protection and secure the workpiece before drilling.
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