Hertel C.E08.0437 Extra Length Drill Bit 0.1719 in Hss

Product Description

The HERTEL C.E08.0437 is an extra length high-speed steel drill bit designed for drilling through metal, wood, and general-purpose materials where a standard-length bit cannot reach. Built from high-speed steel with an oxide finish, this bit measures 0.1719 inches in diameter and 8 inches in overall length, giving technicians and tradespeople the extended reach needed for deep-hole drilling applications. The 118-degree split or conventional point is a standard general-purpose geometry that starts cleanly on flat and curved surfaces. Two flutes channel chips out of the bore efficiently across the 5.5-inch flute length.

This bit is suited for shop, field, and maintenance applications where a standard jobber-length bit falls short. Electricians routing conduit anchors through deep framing, HVAC technicians drilling through thick structural members for refrigerant line penetrations, and plumbers boring through deep assemblies will all find the extended reach useful. The general-purpose grade makes it a practical single-bit solution for mild steel, aluminum, plastics, and wood encountered in everyday trade work.

Key Features

• 0.1719-inch diameter provides precise sizing for common trade drilling tasks
• 8-inch overall length delivers extended reach beyond standard jobber-length bits
• 5.5-inch flute length supports efficient chip evacuation in deep-hole applications
• 118-degree drill point angle suits general-purpose use on flat and irregular surfaces
• High-speed steel construction withstands heat generated during metal drilling
• Oxide finish provides mild corrosion resistance and reduces friction at the cutting edge

Compatibility

Designed as a general-purpose extra length drill bit compatible with standard drill chucks and magnetic drill press setups accepting a straight shank at 0.1719-inch diameter.

Installation Notes

Secure the bit firmly in the chuck before use and verify the chuck key is removed before powering the drill. Use cutting fluid or lubricant when drilling through ferrous metals to extend bit life and reduce heat buildup. Start at a lower RPM for deeper holes and allow chips to clear the flutes periodically by withdrawing the bit. Wear appropriate eye protection in accordance with applicable shop safety requirements.