Review on Irwin Tools 61132 Tungsten Carbide by Marc Stewart

Like most other cheap tools. There's no quality there. The hammer drill drilled 11 3.5 inch deep holes in the concrete and the shank broke away from the rest of the bit. About halfway to the drilled holes I noticed a definite wobble that started to develop as if the heat was too much and the metal was softening, Irvine isn't the same as before.