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The Irwin 66610 is a six-inch aircraft extension drill bit made of high-speed steel. This fractional straight shank drill bit is designed for precision drilling. It features a diameter of five thirty-seconds of an inch.
This drill bit is ideal for drilling through tough materials commonly found in aircraft manufacturing and repair.
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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