In {TAIL ~ a preferred embodiment}, {HEAD ~ the blade} is removable and replaceable, while the handle is reusable 
In { TAIL ~ a preferred embodiment } , { HEAD ~ the blade } is removable and replaceable , while the handle is reusable
REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH