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The USAG 664 E is a hex socket bit with a 1/4" shank and a length of 50 mm. It is available in sizes 3, 4, 5, 6, 8 and 10 mm. Read more

A century of Italian toolsAll 6864 USAG productsThe USAG 664 E is a hex socket bit with a 1/4" shank and a length of 50 mm. It is available in sizes 3, 4, 5, 6, 8 and 10 mm.
The bit is used for driving and loosening hex socket screws with screwdrivers and bit holders that accept 1/4" bits.
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