XP Diamond 1" Granite Marble Stone Diamond Core Drill Bit w/ Shank
Our 1" Premium Marble Granite Stone Wet Dry Cutting Diamond Core Drill Bit Features: 1"-Drilling diameter. 5 mm diamond segment height for extended bit life. Overall bit length: 3 1/2". Barrel depth: 2 1/8". Comes with removable pilot bit. Allen wrench fo