Hertel C.E03.0579 Aircraft Extension Drill Bit No.1 Hss

Product Description

The HERTEL C.E03.0579 is a No.1 wire-size aircraft extension drill bit designed for precision drilling in aerospace and general-purpose metalworking applications. Built from high-speed steel with an oxide finish, this bit features a 135-degree split point that is self-centering and reduces walking on entry. The spiral flute geometry promotes chip evacuation, and the web-thinned, tapered web configuration reduces thrust requirements. Overall length is 6 inches with a 2.625-inch flute length, making it suited for reaching into recessed or hard-to-access locations. Decimal diameter is 0.2280 inches. Weight is 0.15 pounds.

This drill bit is intended for use in aircraft assembly, sheet metal fabrication, and structural drilling where extended reach is required. The straight cylindrical shank fits standard drill chucks without adapters. Right-hand cutting direction is compatible with conventional drill press and hand drill operation. General-purpose tool performance rating makes it appropriate for a wide range of materials encountered in maintenance, repair, and overhaul work as well as light production drilling.

Key Features

• 135-degree split point is self-centering and reduces drill walking on hard or curved surfaces
• Web-thinned, tapered web lowers cutting thrust and reduces heat buildup
• 6-inch overall length with 2.625-inch spiral flute provides extended reach for confined spaces
• High-speed steel construction with oxide finish for corrosion resistance and lubricity
• Two-flute, right-hand spiral design promotes efficient chip clearance
• Meets NAS 907 standard for aircraft drill bits

Compatibility

Designed as an OEM-style replacement or direct-use aircraft extension drill bit conforming to NAS 907 standards, suitable for use in standard straight-shank drill chucks across drill press, hand drill, and pneumatic drill applications.

Installation Notes

Installation and use should be performed by qualified machinists, aviation maintenance technicians, or sheet metal workers familiar with drill bit selection and speed-feed parameters for the material being drilled. Secure the workpiece and ensure the drill chuck is tightened fully before operation. Always wear appropriate eye protection and follow applicable shop safety procedures when operating cutting tools.