DIAMOND TIP MATERIAL; 2 1/2 INCH DESIGNATED SIZE; CORE BIT; DIAMOND DRILL MOTOR USED ON POWER TOOL; THREAD SIZE 1 1/4 INCH-7 TPI; TUBE LENGTH 14 INCH; HOLE DIAMETER 2-1/2 INCH; HOLE DIAMETER - DECIMAL 2.5; HOLE DIAMETER - DECIMAL - UOM IN