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The EAGLE CUTTING TOOL S304-103-I is a size 3 cobalt jobber-length drill bit built for drilling through hard and abrasion-resistant materials. Cobalt construction gives this bit superior heat resistance compared to standard high-speed steel, making it suitable for sustained drilling cycles in tough base metals. At 0.4 pounds, it is a lightweight single-piece tool that seats in standard drill chucks. Electricians, plumbers, pipefitters, and HVAC mechanics routinely reach for cobalt jobber bits when drilling through hardened steel, stainless steel, and cast materials during rough-in and equipment installation work.
This bit is suited to both shop and field use wherever a wire-gauge size 3 drill is required. Typical applications include metal fabrication, conduit work, pipe fitting, bracket installation, and equipment mounting in residential and light commercial settings. The jobber-length geometry provides a balanced reach-to-rigidity ratio that works well in handheld drills and drill presses alike.
Designed as an OEM-style replacement or direct substitute for standard wire-gauge size 3 jobber-length drill bits used in metal drilling applications across trade and industrial settings.
Secure the bit firmly in a keyed or keyless drill chuck before use and verify it is fully seated and centered. Always wear appropriate eye protection and secure the workpiece before drilling. When drilling hard or stainless steel, use cutting fluid to extend bit life and reduce heat buildup. Inspect the cutting edges for wear before each use and replace the bit if the tip shows chipping or excessive dullness.
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