Everyone agrees that the "Negative Rake" is the way to go with plastics, but the cutters are expensive and you can not sharpen them.

SpeakEasy to the rescue.

Our new NRS tool bar will allow you to use conventional carbide cuttersand enjoy the superior cutting action and finish of "Negative Rake".

You simple hold the tool square and level, and the angle at the end of the bar does all the work.

Very easy to master.