its end tapered for about three or four threads

its end tapered for about eight or ten threads

full threads for the whole of its length

none of the above

shank, material and diameter

shank, lip angle and size of flute

material, length of body and helix angle

any one of these

straight fluted reamer

left and spiral fluted reamer

right hand spiral fluted reamer

any one of these

straight fluted reamer

left hand spiral fluted reamer

right hand spiral fluted reamer

any one of these

equal to

one-fourth

one-half

double