1/2"" x 4"" x 6"" OAL Straight Shank Carbide-Tipped Masonry Drill Bit
Drill into concrete, stone and masonry with this Bosch 1/8"" x 1-1/2"" x 3"" OAL Straight Shank Carbide-Tipped Masonry Drill Bit (HCBG16) . The low voltage, high temperature brazing prevents the carbide cutting edge from breaking out even when heat builds up during deep drilling.
1/2"" x 4"" x 6"" OAL Straight Shank Carbide-Tipped Masonry Drill Bit Review
I have several drill bits from Bosch and they are great:) Trust me!