Hertel C.E10.0516 Extra Length Drill Bit 0.2031 in Hss

Product Description

The HERTEL C.E10.0516 is an extra length high-speed steel drill bit designed for applications that require deep-hole drilling beyond the reach of standard-length tooling. It measures 0.2031 inches in diameter with a 12-inch overall length and a 9-inch flute length, giving it the extended reach needed for through-hole work in thick stock, structural components, or hard-to-access locations. The 118-degree split point geometry helps center the bit on entry and reduces walking on flat and curved surfaces. The oxide finish provides a degree of surface hardness and mild corrosion resistance. This is a general-purpose drill bit suited for machinists, maintenance technicians, pipefitters, and industrial tradespeople.

This drill bit is used wherever a standard jobber-length bit falls short. Common applications include drilling through thick metal plate, deep structural steel, pipe flanges, or stacked materials in fabrication and maintenance settings. The extra length makes it particularly useful in confined spaces where the drill motor cannot be positioned close to the work surface. It is well suited for general-purpose metal drilling in shop or field environments.

Key Features

• 0.2031-inch diameter for precise hole sizing in metal and similar materials
• 12-inch overall length for deep-hole and hard-to-reach drilling applications
• 9-inch flute length provides extended chip evacuation over the full depth of cut
• 118-degree point angle suitable for general-purpose metal drilling
• Two-flute design for efficient chip clearance
• Oxide finish adds mild surface protection and reduces galling

Compatibility

Designed as a general-purpose extra length drill bit compatible with standard drill chucks and magnetic drill presses that accept straight-shank bits up to 0.2031 inches in diameter.

Installation Notes

This bit is intended for use by machinists, maintenance technicians, and industrial tradespeople using standard drill presses, hand drills, or magnetic base drills. Secure the workpiece fully before drilling to prevent movement under torque. Use appropriate cutting fluid when drilling steel to extend bit life and improve hole quality. Inspect the cutting edges before each use and replace the bit if chipping or excessive wear is observed.