Hertel C.E09.0794 Extra Length Drill Bit 5/16 Inch Hss

Product Description

The HERTEL C.E09.0794 is a 5/16-inch extra length high-speed steel drill bit designed for applications where a standard-length bit cannot reach. Built from high-speed steel (HSS) with an oxide finish, it carries a 118-degree split-free point angle suited for general-purpose drilling into ferrous and non-ferrous metals, wood, and plastics. The overall length measures 10 inches, and the flute length runs 7.5 inches, giving machinists and tradespeople the extended reach needed for deep-hole work. With two flutes and a 0.3125-inch diameter, this bit delivers consistent chip evacuation and accurate entry in production and maintenance drilling tasks.

This drill bit is appropriate for metal fabrication shops, mechanical contractors, and maintenance technicians who need to drill through deep structural members, equipment housings, or layered assemblies that a standard jobber-length bit cannot accommodate. It is a general-purpose tool suited for use in drill presses, handheld power drills, and magnetic base drills. The oxide finish provides a moderate level of corrosion resistance and reduces friction during cutting, extending service life in everyday shop and field conditions.

Key Features

• 5/16-inch (0.3125 inches) diameter for common fastener and clearance hole sizing
• 10-inch overall length provides extended reach beyond standard jobber-length bits
• 7.5-inch flute length supports efficient chip removal in deep-hole applications
• 118-degree point angle works across ferrous metals, non-ferrous metals, wood, and plastics
• High-speed steel construction withstands heat buildup during sustained drilling
• Oxide finish reduces surface friction and offers basic corrosion resistance

Compatibility

Designed as a general-purpose extra-length drill bit compatible with standard 3/8-inch and 1/2-inch drill chucks on corded drills, drill presses, and magnetic base drills used in metalworking and maintenance applications.

Installation Notes

Extra-length drill bits are typically used by machinists, millwrights, and mechanical contractors. Secure the bit firmly in the chuck and verify runout before beginning a cut. Use appropriate cutting fluid when drilling ferrous metals to manage heat and extend bit life. Due to the extended length, feed pressure should be controlled carefully to prevent deflection or bit breakage.