Hertel C.E09.0357 Extra Length Drill Bit 0.1406 in Hss

Product Description

The HERTEL C.E09.0357 is an extra length twist drill bit engineered for general-purpose drilling in metal, wood, and plastics where standard-length bits cannot reach. Ground from high-speed steel (HSS) with an oxide finish, it delivers reliable hardness and wear resistance across a wide range of workpiece materials. The bit features a 118-degree point angle suited for common drilling tasks, a 2-flute design for efficient chip evacuation, and a 10.0000-inch overall length with a 7.5-inch flute length. Machinists, maintenance technicians, and fabricators use this bit when deep-hole access is required with conventional drilling equipment.

This extra length drill bit is appropriate for production and maintenance drilling applications where extended reach into a workpiece or fixture is necessary. The 0.1406-inch diameter corresponds to a No. 29 wire gauge size, commonly used for tap-drill and clearance-hole operations in light-gauge metal and composite materials. Its general-purpose grade makes it a practical stock item in job-shop, MRO, and field-service environments.

Key Features

• Extra length at 10.0000 inches overall for deep-reach drilling applications
• 0.1406-inch diameter for No. 29 wire gauge tap-drill and clearance operations
• 118-degree drill point angle for general-purpose use across common workpiece materials
• High-speed steel construction provides hardness and heat resistance during cutting
• Oxide finish reduces friction and offers light corrosion protection
• 2-flute geometry promotes efficient chip removal during deep-hole drilling

Compatibility

Designed as a general-purpose extra length drill bit compatible with standard drill chucks and CNC or manual drill presses accepting round-shank bits in the 0.1406-inch diameter range.

Installation Notes

Extra length drill bits are installed by machinists and maintenance technicians using standard 3-jaw drill chucks on drill presses, lathes, or hand drills. Secure the shank firmly in the chuck before operation to prevent runout and bit deflection. Use appropriate cutting fluid for metal drilling to extend tool life and maintain hole quality. Inspect the cutting edges before each use and replace the bit if chipping or excessive wear is observed.