hgudesign Wet Diamond Core Drill Bits, 2"/52mm Size, 15-1/2"/395mm Drill Depth, 1-1/4"-7 UNC Thread Arbor, Crown Style Segments, for Brick, Block, Masonry, Stone, Concrete. (2)

VERSATILE - Core Drill Bits engineered for drilling concrete, lightly reinforced concrete, or dense masonry - high diamond concentration ensures extended core life and effective drilling ARBOR DIMENSIONS - 1-1/4"-7 threaded arbor DRILLING CAPACITY - 15-1/2" featuring mesh segments. Quick, efficient, WET USE ONLY - optimal with handheld or dedicated core drill rigs (wet operation only)