Hertel C.E14.0318 Extra Length Cobalt Drill Bit 1/8 in

Product Description

The HERTEL C.E14.0318 is a cobalt extra-length drill bit designed for demanding metal drilling applications where standard-length bits fall short. Built from cobalt high-speed steel with a bright, uncoated finish, this 1/8-inch bit delivers heat resistance and edge retention on tough materials including stainless steel, cast iron, and hardened alloys. The 135-degree split-point tip reduces thrust and eliminates the need for a center punch on most surfaces, allowing the bit to self-center and start cleanly. With a 12-inch overall length and a 9-inch flute length, it reaches into deep bores and awkward setups that standard jobber bits cannot access.

This extra-length bit suits maintenance, fabrication, and tool-and-die work where deep hole drilling is required. It is commonly used by machinists, millwrights, and metalworking tradespeople working on structural steel, tubing, enclosures, and heavy equipment. The extended reach makes it practical for drilling through thick cross-sections or reaching recessed locations on assemblies that cannot be disassembled before drilling.

Key Features

• Cobalt tool material provides elevated heat and wear resistance compared to standard HSS bits
• 135-degree split-point tip self-centers and reduces walking without a pilot hole
• 9-inch flute length enables chip evacuation in deep-hole drilling applications
• 12-inch overall length provides extended reach for deep or obstructed bore locations
• Bright, uncoated finish compatible with cutting fluids and general-purpose use
• 2-flute geometry balances chip clearance with rigidity in the extended shank

Compatibility

Designed as a general-purpose extra-length cobalt drill bit fitting standard 1/8-inch drill chucks and collets on drill presses, magnetic drills, and hand drills used in metalworking applications.

Installation Notes

Installation and use should be performed by qualified machinists or tradespeople familiar with metal drilling procedures. Ensure the drill chuck is fully tightened and the workpiece is securely clamped before beginning any operation. Use appropriate cutting fluid to extend bit life and improve hole finish when drilling ferrous metals. Inspect the cutting edges before each use and remove the bit from service if chipping or excessive wear is observed.