1 3/8" x 5/8"-11 Marble Core Bit1 3/8" x 5/8"-11 Marble Core Bit
give you the highest level of performance compared to other major brands on the market without the added cost. These core bits can easily drill over 100 granite holes without...
Smartcut Turbo T-type Dry Core BitsVery aggressive T-segment. Fast and Clean ( under 6500RPM)
Smartcut Supreme Dry Core Bit with side Proctection