Features: 1.It can effectively ensure the absolute safety of the magnetic head assembly during the moving operation when it is diagnosed that the head of the hard disk is faulty or the magnetic head assembly needs to be uninstalled for other reasons 2.Very practical, support a wider range, more intimate to use 3.Can not only completely fix the magnetic head, but also it is beneficial to guide the head to enter and exit the disk area or the parking rack safely and conveniently, to maximize the operation safety of the "head", and to simultaneously strengthen the seismic resistance 4.Good synchronization of data recovery operations and consistency of physical head separation 5.Taking into account factors such as computer type, hard disk type, number of disks, number of heads, head parking area (outer landing, inner landing) and other factors, the unique personalized design of fixing holes, pins, and sockets 6.There is a box which you can store and convenient to carry specification:Item Type: Hard Drive Head Replacement Tool Application: HDD Color: White Suitable for ST( Seagate Technology ) series ModelNumber of discsNumber of heads ST2-111 or 2 ST2-223 or 4 ST2-447 or 8 ST2-559 or 10 ST3-3-223 or 4 ST3-3-447 or 8 ST3-2-335 or 6 ST3-1-335 or 6 STES5-359 or 10 ST3-6612 PackageList:1 Set x Hard Drive Head Replacement Tool