Eagle Tool US EA75054XE X Flex Installer Drill Bit and Extension Kit, Auger Style, 3/4-in by 54-in bit and 1/4-in by 36-in Extension, Made in The USA

Uniquely designed with a notch in the shank to prevent the bit from slipping out of an extension and being lost inside the wall Used with the included Quick Switch Hex adaptor, the notch will prevent the annoying slip in the chuck Made in the USA with ultra sharp threads for best pulling power and the ability to move quickly through some of the hardest woods 3-flat grip and notch on the chuck end for a secure hold Wire fishing accommodation holes in the head and shank for added versatility 3/4-inch head diameter, 1/4-inch shank diameter, overall length of the bit is 54-inch Includes a 1/4-inch by 36-inch long extension with an internal Hex for use with any 1/4-inch cable bit or 1/4-inch hex shank quick change tool