The diameter of a thread milling cutter is smaller than the drilled hole, and the cutter turns in an elliptical orbit to reduce cutting torque when compared with machine tapping. One of the most ...

New Thread Whirling series offers choices on number of teeth and corners. NTK Cutting Tools has launched the new "ECO Series" line as an addition to its existing "Thread Whirling" ...

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 ...