Hertel C.E09.0516 Extra Length Drill Bit 0.2031 in Hss

Product Description

The HERTEL C.E09.0516 is an extra length high-speed steel (HSS) drill bit designed for deep-hole drilling applications where standard-length bits cannot reach. Built from general-purpose high-speed steel with an oxide finish, it delivers consistent performance in ferrous and non-ferrous metals, wood, and plastics. The bit measures 0.2031 inches in diameter with a 118-degree drill point angle, a flute length of 7.5 inches, and an overall length of 10 inches. The extended reach makes it suitable for production and maintenance drilling tasks that require accessing recessed surfaces or drilling through thick stock.

This bit is a general-purpose extra length drill intended for machine shop, maintenance, and fabrication environments. It fits standard drill chucks and can be run on drill presses, lathes, and hand-held power drills. The 7.5-inch flute length allows deep chip evacuation, reducing heat buildup and the need for frequent pecking cycles. Machinists, millwrights, and maintenance technicians commonly specify this style of bit when standard jobber-length drills fall short for the application.

Key Features

• 0.2031-inch diameter for precise undersized or clearance hole drilling
• 118-degree split-point-compatible angle for general-purpose entry into a wide range of materials
• 10-inch overall length with a 7.5-inch flute length for extended reach into deep setups
• High-speed steel construction provides toughness and regrindability
• Oxide finish reduces friction and provides light corrosion resistance during storage and use
• 2-flute geometry supports efficient chip removal in deep-hole drilling

Compatibility

Designed as a general-purpose extra length drill bit compatible with standard drill chucks accepting round shanks in the 0.2031-inch diameter range, suitable for drill presses, CNC drilling operations, and portable power drills.

Installation Notes

Install and remove this bit only with the machine powered off and the spindle fully stopped. Secure the shank firmly in a properly sized drill chuck and verify there is no runout before beginning a cut. Use appropriate cutting fluid or lubricant when drilling metals to extend tool life and maintain hole quality. Always wear eye protection and follow applicable OSHA and machine-specific safety procedures when operating drilling equipment.