We offer is a qualitative variety of Serrating (Grooving) Tools (NW Series). These equipment are employed for cutting one or more grooves in tube sheet bore. This single tool can be used for a variety of hole diameters just by changing Pilot Nose & Cutter. With the ability of being able to sharp these tools again, this cutter has a long service life. Features: High Production Tool. One Tool for one size only. One piece mandrel construction give you more accuracy.