the bottom of said head being flat and substantially perpendicular to {HEAD ~ the axis} of said cylinder body, said measuring element being axially slidable in a bore closely adjacent to {TAIL ~ the flat bottom} of said head and substantially parallel thereto, to facilitate measurement of even very shallow holes in workpieces 
the bottom of said head being flat and substantially perpendicular to { HEAD ~ the axis } of said cylinder body , said measuring element being axially slidable in a bore closely adjacent to { TAIL ~ the flat bottom } of said head and substantially parallel thereto , to facilitate measurement of even very shallow holes in workpieces
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH