Hertel C.E09.1111 Extra Length Drill Bit 7/16 Inch Hss

Product Description

The HERTEL C.E09.1111 is a 7/16 inch (0.4375 inches) extra length twist drill bit engineered for general purpose drilling in metal, wood, and plastic. Built from high-speed steel with an oxide finish, it delivers reliable performance in standard drilling applications where added reach is required. The 118-degree split or conventional point provides good centering and cutting action across a range of workpiece materials. With a 10.0 inch overall length and a 7.5 inch flute length, this bit gives machinists and maintenance technicians the extended reach needed for deep-hole work that standard-length bits cannot access.

This extra length drill bit is suited for use in machine shops, fabrication environments, and maintenance settings where drilling through thick stock or reaching into recessed areas is a common requirement. It runs in standard drill presses, milling machine quills, and hand-held electric drills with a 7/16 inch capable chuck. General purpose grade construction makes it a practical stock item for production and repair work alike.

Key Features

• 7/16 inch (0.4375 inches) diameter for precise sizing in standard fractional applications
• 118-degree drill point angle provides reliable self-centering and efficient chip formation
• 10.0 inch overall length extends reach beyond standard jobber-length bits
• 7.5 inch flute length supports deep-hole chip evacuation
• High-speed steel construction resists heat buildup during moderate-speed drilling
• Oxide finish provides light corrosion resistance and reduces friction at the cutting edge

Compatibility

Designed as a general purpose extra length drill bit compatible with any drill press, CNC machine, or hand drill equipped with a chuck capacity of at least 7/16 inch.

Installation Notes

Installation and use should be performed by machinists or qualified maintenance technicians familiar with rotary cutting tools. Secure the bit fully in the chuck and verify runout before beginning a cut. Always power down and lock out the machine before changing bits. Use appropriate cutting fluid when drilling ferrous metals to extend tool life and maintain dimensional accuracy.