Hertel C.E03.0913 Aircraft Extension Drill Bit 23/64 in

Product Description

The HERTEL C.E03.0913 is a 23/64-inch diameter aircraft extension drill bit designed for deep-reach drilling applications where a standard-length bit cannot access the work surface. Built from high-speed steel with an oxide finish, it delivers reliable cutting performance in steel, aluminum, and general-purpose metals. The 135-degree split point is self-centering, reducing the need for a center punch and helping prevent walking on entry. At 6 inches overall length with a 3.5-inch spiral flute, this bit suits HVAC, electrical, and plumbing trades that regularly drill through structural members, deep cavities, or stacked assemblies during rough-in work.

Aircraft extension drill bits like the C.E03.0913 are used wherever added reach is required - drilling through wall studs, floor joists, HVAC equipment panels, electrical enclosures, or sheet metal framing. The extended shank and full spiral flute help clear chips effectively during deeper passes. This bit is well-suited to residential and light commercial trade work where a 6-inch reach is needed and a standard twist drill comes up short. Right-hand cutting direction is standard for use with conventional drill drivers and drill presses.

Key Features

• 23/64-inch (0.3594-inch decimal) diameter straight-cylindrical shank fits standard chucks
• 135-degree split point is self-centering and reduces walking on entry without a center punch
• 6-inch overall length provides extended reach into deep cavities and structural assemblies
• 3.5-inch spiral flute with web-thinned, tapered web configuration promotes efficient chip evacuation
• High-speed steel construction with oxide finish for general-purpose metal drilling
• Right-hand cutting direction, 2-flute design for use with standard drill equipment

Compatibility

Designed as a general-purpose aircraft extension drill bit compatible with standard straight-cylindrical chuck systems for right-hand drilling in metal, sheet steel, aluminum, and similar materials.

Installation Notes

Install and remove drill bits only when the drill driver or drill press is fully powered off and the chuck is stationary. Secure the workpiece before drilling to prevent movement. Follow applicable OSHA and shop-safety guidelines for rotating cutting tools, including use of appropriate eye protection. Do not exceed the rated speed range for the bit diameter and material being drilled.