ROCK CARBIDE tip for longer bit life. Elongated four flute helix for faster material removal. Increased steel prevents breakage. Diameter: 7/8 inch; usable length: 10 inches; overall length: 12 inches. Includes one hammer drill bit.
Required for drilling 1/2" water pipe and plumbing holes through 5" poured concrete and 8" cement blocks. I had an SDS Heavy Duty Impact Drill and this bit did the job perfectly.
with building the deck - used this drill bit with a cheap SDS port cargo drill bit to drill 17 holes for threaded rod inserts - worked great - no problems with the chisel and it looks pretty good just like when I started drilling. I almost broke my wrist when the drill got caught on a rebar in one of the supports so it grabbed first rather than cut through, but eventually cut through the rebar - the key is to let the weight of the drill do its job and peck at an obstacle. Great product, cheapβ¦