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The KENNAMETAL 4176053 is a solid carbide grooving insert in the Top Notch series, designed for left-hand grooving operations on CNC lathes and turning centers. It carries a KCU10 manufacturer grade with a PVD-applied AlTiN coating, which provides thermal resistance and wear protection during interrupted cuts and high-speed applications. The insert delivers a cutting width of 2.39 mm (0.0941 inches) and a maximum depth of cut of 3.81 mm (0.1500 inches), making it suitable for shallow-to-medium groove profiles. Chip control is handled by the K chip breaker geometry. Installation is performed by qualified machinists or CNC toolroom personnel using a clamp-style insert holding method.
This insert is sized for NG-style Top Notch toolholders and targets general-purpose grooving and parting applications in production turning environments. The 55-degree included angle and 0.19 mm corner radius suit ferrous and non-ferrous materials in the C3 and C4 material grade ranges. Typical applications include OD grooving on steel and alloy workpieces where consistent groove width and depth repeatability are required. The left-hand orientation must be matched to the corresponding left-hand toolholder configuration.
Designed for use with NG-style clamp-type toolholders in the Top Notch series. Insert size designation is 3094. Compatible material grades are C3 and C4. Left-hand orientation requires a matching left-hand toolholder.
Installation and indexing should be performed by a qualified machinist or CNC toolroom technician. Shut down and lock out the machine spindle before seating or replacing inserts. Use the appropriate clamp screw torque per the toolholder manufacturer specification and verify insert seating before resuming cuts. Do not use a damaged or chipped insert, as carbide fracture can create a safety hazard and damage the workpiece or toolholder pocket.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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