Hertel C.E11.1468 Extra Length Drill Bit 0.5781 in Hss

Product Description

The HERTEL C.E11.1468 is an extra length high-speed steel drill bit designed for deep-hole drilling applications where a standard-length bit cannot reach. It measures 0.5781 inches in diameter with an 18-inch overall length and a 12-inch flute length, giving it significant reach beyond conventional jobber-length tooling. The 118-degree point angle is a general-purpose geometry that works across a wide range of materials including mild steel, aluminum, and plastics. An oxide finish reduces friction and helps with chip evacuation. This bit is suited for machinists, tool-and-die shops, fabricators, and maintenance technicians who regularly work with deep bores or thick-section materials.

Extra length drill bits like the C.E11.1468 are used when standard drills cannot achieve the required bore depth in a single pass without repositioning. Typical applications include drilling through structural steel, deep flanges, thick plate stock, and similar workpieces encountered in industrial maintenance, fabrication, and mechanical contracting. The extended flute length allows chips to evacuate over a longer travel distance, which is important when drilling deep holes in ferrous and non-ferrous metals. This bit is sold individually and is appropriate for use in drill presses, milling machines, and hand-held magnetic drills with a suitable chuck.

Key Features

• 0.5781-inch diameter for precise sizing in fractional and close-tolerance bore applications
• 18-inch overall length provides reach for deep-hole drilling beyond standard jobber-length capacity
• 12-inch flute length promotes chip evacuation throughout the full depth of cut
• 118-degree point angle is a general-purpose geometry compatible with a broad range of workpiece materials
• High-speed steel construction balances hardness and toughness for repeated use in production and maintenance environments
• Oxide finish reduces surface friction and provides light corrosion resistance during storage and use

Compatibility

Designed as a general-purpose extra length drill bit suitable for use in standard drill chucks, drill presses, and milling machine spindles that accept a 0.5781-inch shank diameter.

Installation Notes

Install this bit in a properly sized chuck and confirm it is fully seated and tightened before operation. Reduce feed rate when drilling deep holes to prevent heat buildup and bit deflection, and retract the bit periodically to clear chips from the flutes. Always use appropriate cutting fluid or coolant when drilling ferrous metals to extend tool life and maintain dimensional accuracy. Follow applicable machine shop safety practices and ensure the workpiece is firmly fixtured before beginning the cut.