Counterbore. A counterbored hole is typically used when a fastener such as a bolt or cap head screw is required to sit flush with or below the level of a surface. To fabricate your counterbored holes, we would need to know the following information.1  Major Diameter (finished diameter of the hole at the surface).ountersink. A countersink is a cone shaped hole cut into the laminate. It is typically used to allow the tapered head of a screw to sit flush with the top of the laminate. By comparison, a counterbore makes a flat-bottomed hole and its sides are drilled straight down.
The cost of tuition for an EKG technician program can range anywhere from a little over $400 to more than $1,000. At Carroll Community College, for example, the 60-hour EKG technician training program costs $629 and does not yet include books. Meanwhile, California State University has an EKG technician certification program which has a tuition cost of $1,099. This already includes the course textbook. At the Tennessee College of Applied Technology in Knoxville, the cost of their EKG technician program is $478.
The average cost of a routine ECG is between $150 and $200. An exercise stress test is more expensive, and averages between $250 and $300.An echocardiogram costs on average about $1400.All these costs should include the test itself and the cost of the technician's reading and interpretation of the results.he test is sometimes called an EKG, electrocardiography and a 12-lead EKG/ECG (because the heart's electricity activity is monitored in 12 parts of the body). The printout after the test shows a graph of the electrical activity and rhythm of each heartbeat over the time of the test.