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The EAGLE CUTTING TOOL A712-013-I is a high-speed steel (HSS) aircraft extension drill bit designed for drilling in tight or deep-reach applications where a standard-length bit cannot access the work area. At 13/64 inch in diameter with a 12-inch overall length (OAL), this bit delivers the reach needed for aircraft, automotive, marine, and industrial structural work. HSS construction provides the hardness and heat resistance required for drilling through steel, aluminum, and other metals encountered in field and shop environments. Machinists, aircraft maintenance technicians, and metalworking professionals are the primary users of this type of extended-length drill.
This drill bit is suited for applications requiring extended reach into confined or recessed areas, including through-hole drilling in fuselage panels, structural frames, and deep-section metal assemblies. The 13/64 inch diameter is a common size for fastener clearance and pilot holes in metal fabrication and MRO work. Its 12-inch OAL makes it practical for jobs where standard jobber-length bits fall short, including work on equipment panels, frames, and assemblies with limited access.
Designed as a general-purpose extended-length HSS drill bit compatible with standard 3-jaw drill chucks and magnetic drill presses accepting a round shank in the 13/64 inch size range.
This drill bit is installed and used by machinists, aircraft maintenance technicians, and metalworkers using standard drill presses, hand drills, or magnetic base drills. Secure the workpiece firmly before drilling and use appropriate cutting fluid when drilling ferrous metals to extend bit life and reduce heat. Inspect the cutting edges before each use and replace the bit if chipping or dulling is observed. Follow applicable workplace safety standards for eye protection and chip management when operating rotary cutting tools.
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