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Flexible shaft
Fish eye holes at both ends
Self feeding screw point
Drills holes down the length of wall cavity
Fish eye hole provided near tip of flutes to aid in pulling wire inside wall cavity from either direction after drilling, with no damage to the wall

FLEXIBLE BIT THAT BENDS AND HELPS POSITION THE DRILL BIT INSIDE THE WALL OR CEILING CAVITY.

MAGBIT 777.54.1216 MAG 777 3/4-Inch by 54-Inch Fish Bit