Reamers are rotary cutting tools used in metalworking. Reaming is the process of enlarging and sizing a hole by means of a multifluted cutting tool. Precision reamers are designed to enlarge the size ...

Twist drills do not make accurately sized or good finish holes; a reamer of some type is often used to cut the final size and finish. A reamer will not make the original hole; it will only enlarge a ...