Hard disk is basically the storage of data in computer system. Hard disk consists of platter, control circuit board and interface parts. A hard disk is a sealed unit containing a number of platters in a stack. Hard disk may be mounted in a horizontal or a vertical position. In this description, the hard disk is mounted horizontally. Electromagnetic read/write heads are positioned above and below each platter. As the platters spin, the drive heads move in toward the center surface and out toward the edge. In this way, the drive heads can reach the entire surface of each platter. Hard disk are of several types as of 80GB, 40GB, 1000GB.40GB is basically has single platter and single head. We usually open Hard disk in a clean room.

A clean room is the working area where you will be capable of opening the hard disk for conducting invasive repairs. The airborne particles need to have to be controlled and taken out of the work place. We could refer to this as a adequate environment for repairing hard disk. It is not sufficient just to own a Clean room it has to be looked after and kept clean. The most important thing to do is to have the air positively cleaned and have all contaminants removed from the air. Jumpsuits are the recommended while working in a Clean room. Purpose of working in a clean room is that hard disk can be physically or logically destroyed. There are many reasons that a hard drive may stop working properly. . Physical failure can occur due to sudden power failure, power down of PC, cheap components. As for data loss, data is only magnetic impulses on the surface of a hard disk. Any slight change can result in problems reading or writing data. Logical problems may occur due to viruses enter in the computer, software bugs, corruption of files etc.

But if our hard disk is damaged then we have to repair it through proper manner. Thus for repairing the head Read write head change tool is designed. Read write head change tool is basically the instrument used to remove read write head from the hard disk safely so that data can be recovered .Read write head change Tool is simple to use and causes no damage to the head or the platter surface. There are 14 types of Read write head change tools, as for single platter single head single tool is used, for double platter double head double tool is used. Read write head change tool is to be used in adequate manner as single tool can only be used for single platter if we use single tool for double platter it can cause scratch to the head which can cause damage to our hard platter/head ,thus different tools are there for different platter. To keep the heads from crashing into the platter is just as important to keep them from crashing into each other although they shouldn’t be allowed to touch the platters. The Read write head change tools are available for both desktop and laptop hard drives but the Read write head change tools were different in both cases.

Now the question arises when to use these Read write head change tool? Whenever we found hard disk not working properly as creates sound, unable to read data, water or corrosive damage/or hard disk Read write head is broken we use Read write head change tool. This is useful process introduced because earlier when there is no such device heads are changed through hand which cause crashes to the head while removing from the hard disk which cause loss not only to data l but economically also. Due to Read write head change tool the loss of data can be decreased. Read write head change tool is made up of special kind of plastic named as derlyn plastic which is harmless to the platter as well as head of the hard disk.