Cle-line C23631 Aircraft Extension Drill Bit 7/32 in

Product Description

The CLE-LINE C23631 is a 7/32 inch diameter aircraft extension drill bit engineered for reach-critical drilling applications in metal fabrication, aerospace maintenance, and structural assembly work. Built from high-speed steel with an oxide finish, it features a 135-degree split point that self-centers on contact, reducing the need for a center punch and minimizing walking on hard or curved surfaces. The 6-inch overall length gives technicians the clearance needed to access recessed or obstructed hole locations that standard-length bits cannot reach. Two right-hand spiral flutes with a web-thinned, tapered web configuration promote efficient chip evacuation during extended drilling passes.

This bit is suited for drilling through aluminum, mild steel, and similar materials in aircraft skin repair, structural panel work, and general-purpose metalworking where extended reach is required. The straight cylindrical shank seats securely in standard drill chucks and right-angle drill adapters commonly used in sheet metal and MRO applications. With a 2.5-inch flute length and a close-tolerance shank diameter of 0.2188 inches, the C23631 maintains alignment in both handheld and drill-press setups.

Key Features

• 135-degree split point with self-centering geometry reduces walking and eliminates center-punch step
• 6-inch overall length provides extended reach for obstructed or recessed drilling locations
• High-speed steel construction with oxide finish for corrosion resistance and reduced friction
• Web-thinned, tapered web configuration improves chip flow and lowers thrust required
• Right-hand spiral flutes (2 flutes) with 2.5-inch flute length for efficient swarf removal
• Straight cylindrical shank at 0.2188 inches diameter fits standard drill chucks and adapters

Compatibility

Designed as a general-purpose aircraft extension drill bit compatible with standard three-jaw drill chucks and right-angle drill attachments that accept a straight cylindrical shank at 7/32 inch (0.2188 inches) diameter.

Installation Notes

Installation should be performed by qualified machinists, aircraft maintenance technicians (AMT), or experienced metalworkers following applicable shop and regulatory procedures. Secure the shank fully in the chuck and verify runout before drilling. Use appropriate cutting fluid for the workpiece material to extend bit life and improve hole finish. Inspect the cutting edges and point before each use and remove from service if chipping or excessive wear is observed.