Hertel C.E10.0437 Extra Length Drill Bit 0.1719 in Hss

Product Description

The HERTEL C.E10.0437 is a high-speed steel extra length drill bit designed for applications that require extended reach beyond what standard-length bits can provide. It measures 0.1719 inches in diameter with a 118-degree point angle, making it well suited for general-purpose drilling in a wide range of materials. The bit features an oxide finish that provides a modest level of lubricity and surface hardness. With a 9-inch flute length and a 12-inch overall length, this bit gives machinists, pipefitters, and maintenance technicians the clearance needed to drill through deep workpieces, structural members, or stacked materials in one pass. It is a two-flute design that evacuates chips efficiently during through-hole drilling operations.

This extra length drill bit is used in general-purpose metalworking, maintenance, and fabrication environments where standard 6-inch jobber bits cannot reach the required depth. Typical applications include drilling through pipe hangers, electrical enclosures, structural steel, aluminum extrusions, and other workpieces that require deep hole access. It is appropriate for use in drill presses, magnetic drills, and hand-held power drills when the workpiece and setup allow for stable bit control at extended lengths. Trade professionals including pipefitters, electricians, HVAC fabricators, and general maintenance mechanics will find this bit fits common deep-reach needs encountered on industrial and commercial job sites.

Key Features

• 0.1719-inch diameter with 118-degree split-point-style angle for positive entry on general-purpose materials
• 12-inch overall length and 9-inch flute length for deep-reach drilling applications
• High-speed steel construction provides good heat resistance and wear performance in everyday drilling tasks
• Oxide finish reduces friction at the cutting edge and offers basic corrosion resistance during storage
• Two-flute geometry promotes efficient chip evacuation during through-hole and blind-hole drilling
• General-purpose grade suits a broad range of ferrous and non-ferrous workpiece materials

Compatibility

Designed as a general-purpose extra length drill bit compatible with standard drill chucks that accept round-shank bits up to the appropriate diameter for the 0.1719-inch shank size.

Installation Notes

Extra length drill bits should be installed by a qualified machinist or trade professional familiar with safe drilling practices. Secure the workpiece firmly before drilling to prevent walking or deflection at extended bit lengths, which can cause bit breakage. Reduce feed pressure compared to standard-length bits and use cutting fluid on ferrous metals to extend bit life and manage heat buildup. Always wear appropriate eye protection and follow applicable workplace safety standards when operating rotating cutting tools.