About the two Shrinkit archives; 
AMR35SCSI.SDK (3.5² - self-booting disk archive)
AMR525SCSI.SDK (5.25² - self-booting disk archive)

These are identical in content - both are ProDOS and both are fairly rare - the
AMR SCSI hard disk drive was sold back in the late 1980ıs for use with any Apple
II, II+, IIe and can also be used with the Apple IIgs ROM 01 and ROM  3 model.

This is the only SCSI utility for use with this rather rare SCSI AMR hard disk
drive. If you happen to have obtained one of the older SCSI ŒAMRı hard disk
drives - then this is the utility you need to be able to format it and use it.