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The PRECISION TWIST DRILL 6001340 is a wire gauge size 60 aircraft extension drill bit designed for precision drilling in metal fabrication, aerospace maintenance, and general industrial applications. Built from high speed steel with an oxide finish, it delivers reliable performance in ferrous and non-ferrous materials. The bit features a 135-degree split point with web thinning, which reduces walking on entry and lowers the thrust force needed to start a hole. At 0.04 inches in diameter and 11/16 inches of flute length, it is suited for small-diameter, close-tolerance work where a standard jobber-length bit cannot reach.
This drill bit is a strong fit for aerospace and aircraft sheet metal work, per its NAS 907 Type B standard compliance. It is also appropriate for precision machining, tool and die work, and any application requiring a wire gauge drill in tight clearance areas. The straight cylindrical shank seats securely in standard drill chucks and collets, making it compatible with benchtop drill presses, hand drills, and CNC equipment. The two-flute spiral design promotes efficient chip evacuation even in deep or blind hole scenarios.
Designed as an OEM-style aircraft extension drill bit for use in applications requiring NAS 907 Type B compliance and wire gauge size 60 tooling in standard straight-cylindrical chuck setups.
Installation of this drill bit is performed by licensed machinists, aerospace technicians, or qualified trade professionals. Ensure the drill chuck or collet is fully de-energized and locked out before changing bits. Verify chuck capacity accommodates a 0.04-inch shank diameter before seating the bit. Use appropriate cutting fluid for the workpiece material to extend tool life and maintain hole quality.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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