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Straight and Narrow: The Kennametal Narrow Slotting Cutter

If you’ve ever struggled with inserts coming loose during a slotting operation, keep reading.

If you’ve ever struggled with inserts coming loose during a slotting operation, keep reading. How about inconsistent slot widths, fumbling with awkward screws and inserts on a slotting cutter, or having to use a piece of shim stock to pry wedged chips from deep inside a slotted workpiece? These are just a few of the problems machinists face when trying to cut narrow slots and grooves, but thanks to the newly introduced Kennametal Narrow Slotting (KNS) cutter, the days of “slotting
dread” are over.

Slotting is a common machining practice. Scott Etling, Kennametal’s Director of Global Product Management for indexable milling, lists many applications where the KNS excels. Automakers can use the new cutter to separate cast exhaust manifolds and steering components. Equipment manufacturers can cost-effectively mill the clamping slots on shaft supports and stock collars. Power generation and electronics companies now have a more productive way to machine keyways, add heatsink grooves, yokes, and O-ring grooves. Simply put, if there’s narrow slotting, grooving, or parting to be done, KNS is the new go-to solution.

The KNS has a Double-V design for secure insert retention. A combination of radial and axial positioning not only improves tool life but part accuracy as well. The insert range accommodates slot widths from 1.6 mm to 6.4 mm (0.063 in. to 0.250 in.). Inserts are available in single- (dash to be used here?) or double-ended cutting edges with either a flat or full radiused cutting edge. The cutter diameters range from 63 mm to 250 mm (2.5 in. to 10 in.), and depending on the body size, arbor or shell mounting (or both) is possible.

Learn more at www.kennametal.com.

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