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The EAGLE CUTTING TOOL 1212XL-020-I is a high-speed steel (HSS) long series drill bit, commonly known as a Longboy, designed for deep-hole drilling applications where standard-length bits cannot reach. With a 5/16 inch diameter and a 12 inch overall length (OAL) including a 9 inch flute length, this bit gives tradespeople the reach they need for structural, mechanical, and installation work. The HSS construction handles a wide range of materials including mild steel, aluminum, wood, and plastic. It is well suited for electricians, plumbers, HVAC technicians, and general contractors who need extended-reach drilling on the job.
This long series drill bit is used in residential and commercial applications where standard drill bits fall short. Typical scenarios include drilling through wall studs, joists, plates, and framing members for wire, pipe, or conduit routing. The 5/16 inch diameter is a commonly specified size for cable and small conduit pass-throughs. The extended 12 inch OAL allows the bit to reach through thick assemblies or to drill at an angle without requiring an extension.
Designed as a general-purpose long series drill bit compatible with standard 3/8 inch and 1/2 inch keyed or keyless drill chucks used in corded and cordless drill drivers and drill presses.
This bit is installed by licensed electricians, plumbers, HVAC technicians, and general contractors using standard drill equipment. Ensure the bit is fully seated and secured in the chuck before operation. Reduce feed pressure as the bit exits the material to prevent binding or deflection. Always wear appropriate eye and hand protection when drilling, and confirm no energized wiring or pressurized lines are present in the drilling path before starting.
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