Hertel C.E11.2381 Extra Length Drill Bit 15/16 in Hss

Product Description

The HERTEL C.E11.2381 is an extra length twist drill bit designed for deep-hole drilling in metal, wood, and composite materials. Ground from high-speed steel with an oxide finish, it delivers reliable cut quality and heat resistance in demanding shop and field applications. The bit measures 15/16 inches in diameter with an 18-inch overall length and a 12-inch flute length, giving technicians and tradespeople the reach needed to penetrate thick materials or access recessed bore locations that standard-length bits cannot reach. The 118-degree point angle suits general-purpose work across a broad range of substrates.

This extra length drill bit is suited for fabrication shops, mechanical contractors, pipefitters, electricians, and maintenance tradespeople who routinely drill through structural members, deep castings, or stacked material. The extended 18-inch overall length is particularly useful when working through wall assemblies, beam flanges, or other thick-section components. At 15/16 inches diameter, it fits applications where a bore near 1 inch is required without committing to a full 1-inch cut. Two flutes provide efficient chip evacuation throughout the full flute length.

Key Features

• 15/16 inch (0.9375 inch) diameter for near-1-inch bores without upsizing
• 18-inch overall length provides extended reach into deep or obstructed work locations
• 12-inch flute length supports continuous chip evacuation in deep cuts
• 118-degree point angle for general-purpose use across metal, wood, and composite materials
• High-speed steel construction with oxide finish for heat resistance and corrosion protection
• Two-flute geometry for balanced cutting and efficient chip clearance

Compatibility

Designed as a general-purpose extra length drill bit compatible with standard drill chucks and drill presses that accept 15/16 inch shanks.

Installation Notes

This bit is installed by a machinist, fabricator, or qualified tradesperson using a drill press, magnetic base drill, or heavy-duty handheld drill with a chuck rated for the shank diameter. Secure the workpiece firmly before drilling to prevent walking or deflection over the extended length. Use appropriate cutting fluid when drilling ferrous metals to extend bit life and manage heat buildup. Inspect the cutting edges before each use and retire the bit if chipping or excessive wear is observed.