Hertel C.E03.0873 Aircraft Extension Drill Bit 11/32 in Hss

Product Description

The HERTEL C.E03.0873 is an aircraft extension drill bit designed for deep-reach drilling in metal, composite, and structural applications. It features a 135-degree split point that self-centers on contact, reducing the need for a center punch and minimizing walking on hard surfaces. The 11/32-inch diameter bit is made from high-speed steel with an oxide finish that provides lubricity and light corrosion resistance during cutting operations. At 6 inches overall length with a 3-7/16-inch spiral flute, this bit reaches into recessed areas that standard-length bits cannot access. Right-hand cutting direction and a tapered web configuration with web thinning reduce thrust and improve chip evacuation in both through-hole and blind-hole drilling.

This bit is suited for use in aerospace fabrication, structural steel work, sheet metal shops, and maintenance applications where access depth is a limiting factor. The extended length makes it practical for drilling through thick structural members, stacked materials, or assemblies where the drill must reach past an obstruction. Machinists, fabricators, and maintenance mechanics working with drill presses, hand drills, or magnetic base drills will find this bit appropriate for general-purpose metalworking tasks that require reach beyond standard jobber-length bits.

Key Features

• 135-degree split point is self-centering and eliminates center-punch requirement on most surfaces
• High-speed steel construction handles a wide range of metals and composite materials
• Oxide finish provides lubricity and mild protection against corrosion during use
• 6-inch overall length with 3-7/16-inch flute reaches recessed and deep-set locations
• Two-flute spiral design with web thinning reduces cutting thrust and improves chip clearing
• Straight cylindrical shank at 11/32 inch fits standard drill chucks without adapters

Compatibility

Designed as a general-purpose aircraft extension drill bit for use in standard 3-jaw drill chucks accepting an 11/32-inch straight cylindrical shank. Suitable for drill presses, hand drills, and magnetic base drill units in metalworking and fabrication environments.

Installation Notes

This bit is installed and operated by machinists, fabricators, or maintenance mechanics familiar with metal drilling practices. Secure the shank fully in the drill chuck and verify there is no runout before engaging the workpiece. Use appropriate cutting fluid for the material being drilled to extend bit life and reduce heat buildup. Wear eye protection and secure the workpiece to prevent rotation during drilling.