Thunderbolt Pro Screwbolt - Hex Head - Gal (Various Sizes) Tile Bit now comes coupled with a

now comes coupled with a pan head screw

- Four cutting surfaces: up to 10 times faster than standard spade bits

- Fully heat treated for increased durability

- Bordo Power-Hex Drill Adaptors convert standard round shank Twist drills to 1/4" hex shank

retrofitting of structures to concrete or post-installed rebar requirements

Thunderbolt Pro Screwbolt - Hex Head - Gal (Various Sizes) Tile Bit now comes coupled with aThe ICCONS ThunderboltPRO Hex Head is the latest high tensile screw in, self tapping concrete and masonry screw anchor for use in a wide range of applications. It is used in the residential, commercial and infrastructure construction spaces.