Hertel C.E08.0556 Extra Length Drill Bit 0.2188 in Hss

Product Description

The HERTEL C.E08.0556 is a two-flute extra length drill bit designed for deep-hole drilling operations in metal, wood, and general-purpose materials. Manufactured from high-speed steel with an oxide finish, it delivers consistent cutting performance across a range of materials encountered in fabrication, mechanical, and maintenance work. The bit measures 0.2188 inches in diameter with an overall length of 8 inches, making it well suited for applications where a standard-length bit cannot reach. The 118-degree drill point angle is a conventional geometry optimized for general-purpose use on steel, aluminum, and similar workpieces.

This extra length drill bit fits applications requiring extended reach into deep cavities, through thick stock, or across obstructed access points. It is commonly used by machinists, millwrights, maintenance technicians, and general fabricators working on structural assemblies, mechanical enclosures, and equipment frames. The 5.5-inch flute length provides adequate chip clearance during deep-hole drilling. It is sold individually and suits both manual and machine drilling setups.

Key Features

• High-speed steel construction with oxide finish for general-purpose cutting performance
• 0.2188-inch diameter with 8-inch overall length for extended-reach drilling
• 118-degree drill point angle suits a wide range of common workpiece materials
• 5.5-inch flute length promotes chip evacuation during deep drilling
• Two-flute geometry balances cutting speed with hole quality

Compatibility

Designed as a general-purpose extra length drill bit compatible with standard drill chucks and machine spindles accepting a 0.2188-inch round shank.

Installation Notes

Installation and use should be performed by qualified machinists or technicians familiar with drilling equipment. Secure the workpiece firmly before drilling and ensure the drill chuck is tightened to prevent bit slippage. Reduce feed rate and apply cutting fluid when drilling deep holes to manage heat buildup and extend bit life. Inspect the cutting edges before each use and replace the bit if chipping or excessive wear is observed.