A miter saw has a base, {HEAD ~ a turntable}, {TAIL ~ a cutting unit}, and a support unit 
A miter saw has a base , { HEAD ~ a turntable } , { TAIL ~ a cutting unit } , and a support unit
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH