Bits are carbide tipped for long life in tough applications. Centric conical tip guides bit through concrete and provides optimal hole geometry. Wear mark alerts user when bit is no longer precise. Longer life in concrete with rebar vs. standard bits.
Purchase any additional bits and it is just .99 additional shipping per bit!
We Also Have other sizes available- 1/4", 3/8", 1/2", 5/8", 3/4" 16", and 1"
We Will Combine Shipping If You Any Of These Sizes At The Same Time - Thank you