Hertel C.E08.0516 Extra Length Drill Bit 0.2031 in Hss

Product Description

The HERTEL C.E08.0516 is a high-speed steel extra length drill bit designed for drilling operations that require greater reach than standard-length tooling allows. Built from high-speed steel with an oxide finish, it delivers solid performance across a range of general-purpose drilling applications in metal, wood, and plastics. The bit measures 8 inches overall with a 5.5-inch flute length and a 118-degree drill point angle, making it suitable for most common material entry geometries. Two flutes provide efficient chip evacuation during through-hole and deep-hole work. This bit is handled by machinists, maintenance technicians, and fabrication professionals working on manual drill presses and CNC equipment.

This extra length drill bit is well-suited for applications where standard jobber-length bits cannot reach the workpiece or where deep-hole clearance is required. Typical scenarios include drilling through structural members, deep-set fastener holes, and cross-drilled passages in fabrication and maintenance environments. The 0.2031-inch diameter corresponds to a commonly used fractional and letter-drill equivalent size used across general manufacturing and trade work. It is sold individually and is appropriate for both one-off maintenance tasks and production drilling operations.

Key Features

• High-speed steel construction provides heat and wear resistance during general-purpose drilling
• Oxide finish reduces friction and offers corrosion resistance during storage and use
• 118-degree drill point angle suits a wide range of common materials
• 8-inch overall length with 5.5-inch flute length extends reach beyond standard jobber bits
• Two-flute design promotes efficient chip removal in through-hole and deep-hole drilling
• 0.2031-inch diameter covers a commonly required size in fabrication and maintenance work

Compatibility

Designed as a general-purpose extra length drill bit compatible with standard drill chucks accepting a straight shank in the 0.2031-inch diameter range, suitable for use in manual drill presses, hand drills, and CNC drilling equipment.

Installation Notes

Install and remove this bit only when the drill press or power tool is fully de-energized and the chuck has come to a complete stop. Secure the shank firmly in the chuck using the appropriate chuck key before operating. Extra length bits are more susceptible to deflection and breakage under side loading — use appropriate feed rates and avoid lateral force. Wear appropriate eye protection and follow applicable shop safety standards when operating drilling equipment.