Hertel C.E08.0992 Extra Length Drill Bit 0.3906 in Hss

Product Description

The HERTEL C.E08.0992 is an extra length drill bit designed for through-hole drilling applications that require greater reach than standard-length tooling. Built from high-speed steel with an oxide finish, it measures 8 inches in overall length with a 5.5-inch flute length, giving machinists and fabricators the clearance needed to drill deep or hard-to-reach holes. The 118-degree point angle is a general-purpose geometry suited to a wide range of ferrous and non-ferrous materials. With two flutes and a 0.3906-inch diameter, this bit delivers efficient chip evacuation and consistent hole sizing in production and job-shop environments alike.

This drill bit is suited for metalworking, fabrication, and maintenance applications where standard-length bits cannot reach the work zone. Typical uses include drilling through structural steel, plate stock, and thick assemblies on manual drill presses, milling machines, or hand-held magnetic drills. The extra length makes it especially useful in automotive, shipbuilding, and industrial maintenance contexts where deep-reach access is a regular requirement. It is handled by machinists, tool-and-die workers, and maintenance technicians across general manufacturing and MRO settings.

Key Features

• 0.3906-inch diameter for precise, consistent hole sizing
• 8-inch overall length provides deep-reach capability beyond standard drill bit configurations
• 118-degree point angle covers general-purpose drilling in a wide range of materials
• High-speed steel construction resists heat buildup during continuous drilling
• Oxide finish provides light corrosion resistance and reduces friction at the cutting edge
• Two-flute design promotes efficient chip clearing in deep-hole applications

Compatibility

Designed as a general-purpose extra length drill bit for use in standard drill chucks accepting a 0.3906-inch shank across drill presses, milling machines, and compatible hand-held drilling equipment.

Installation Notes

Extra length drill bits are installed and operated by machinists and maintenance technicians following standard machine shop practices. Always ensure the drill chuck is fully tightened and the workpiece is securely clamped before beginning a cut. Use appropriate cutting fluid for the material being drilled to extend tool life and maintain hole quality. Inspect the cutting edges before each use and retire the bit if chipping or excessive wear is present.