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The EAGLE CUTTING TOOL 1090D-043-I is a 43/64-inch twist drill bit with a 1/2-inch shank, built for professional drilling applications in metal, wood, and similar materials. Part of the Dyno Black and Gold series, this import-grade bit delivers consistent performance in production and maintenance environments. The 1/2-inch reduced shank makes it compatible with standard 1/2-inch chuck capacity drill presses and hand drills. It weighs 0.69 pounds, keeping it manageable for extended use. Machinists, maintenance technicians, and fabricators rely on this style of bit for accurate, repeatable hole sizing in shop and field settings.
This drill bit is suited for use in machine shops, fabrication facilities, and industrial maintenance operations. The 43/64-inch diameter fills a specific size requirement between common fractional sizes, making it a go-to for precise hole sizing where standard fractional bits do not match tolerance requirements. The 1/2-inch shank allows use with a wide range of drill presses, magnetic drills, and variable-speed hand drills equipped with 1/2-inch chucks.
Designed for use with drill presses and hand drills equipped with 1/2-inch chuck capacity, suitable for general metalworking, woodworking, and fabrication applications.
Installation is performed by machinists or maintenance technicians using a 1/2-inch chuck drill press or hand drill. Secure the shank firmly in the chuck before operation and verify the workpiece is properly clamped or fixtured. Use appropriate cutting fluid when drilling ferrous metals to extend bit life and reduce heat buildup. Inspect the cutting edges before each use and replace the bit if chipping or excessive wear is observed.
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