For external machining and facing. The large point angle is very rigid, and good for rough machining. This is the most commonly used insert.

The smaller point angle of this insert is more versatile for finishing and detail work, but it has less cutting-edge strength than other geometries.

The smaller point angle of this insert is more versatile for finishing and detail work, but it has less cutting-edge strength than other geometries.

This insert has 3 cutting edges per side. The 80° cutting angle provides high cutting-edge strength for roughing, but the depth of cut is limited by the short cutting edge.

HFF – Fine Finishing
For finish turning, producing smooth, accurate surfaces. Very good chip control, especially at low depths of cut

HFP – Finishing Positive (Single-Sided)
For finishing to medium turning operations, with optimal chip control over a wide range of cutting conditions and workpiece materials.

HFS – Finishing High-Temp
For finishing applications. Ground periphery with positive cutting edge. Ideally suited for high-temp alloys. Micro-finished edge on the ground periphery adds just a slight hone for improved edge integrity and reliability.

HKR – Flat Top
Flat top geometry for machining cast iron. For finishing and roughing applications.

HML – Medium Light
For finishing to medium machining, with a negative, stable cutting edge. 

HMP – Medium Positive (Single-Sided)
For medium to rough turning, with reduced cutting forces and improved chip control for high feedrates. Suitable for high metal removal rates.

HMR – Light to Medium Roughing
For light to medium roughing of steels, difficult-to-machine high-alloy titanium, and aluminum materials. High strength to deal with heavy chip deformation. 

HMS – Medium High-Temp
For medium machining in high-temp materials. Utilizes a micro-finished edge preparation to increase edge toughness.

HMU – Medium Universal
A medium universal geometry with a soft cutting action due to its positive geometry. Has a versatile application range, and is suited for turning unstable components and for boring applications.

HRH – Roughing Heavy
For medium-duty to roughing. Outstanding chip control. High edge strength for interrupted cuts, forging skin, or scale. Preferred for all cast iron, such as gray, malleable, and nodular.

HUF – Ultra-Fine Finishing
For finishing, with a positive cutting edge for reduced cutting forces and superior surface quality.

HUM – Universal Medium
For medium-duty turning operations. Soft-cutting chip breaker. Used in applications producing varying chip sections, such as profile or copy turning. Good dimensional accuracy. For soft steel materials and stainless steels.

HUR – Universal Roughing
Roughing geometry, with smooth chip forming and improved coolant flow for increased tool life. Positive geometry reduces cutting forces, and improves depth-of-cut notching resistance. Ideally suited for stainless steel applications, and for smooth machining of steel.

CCET – Finishing Positive (Single-Sided)
For finishing turning operations, with optimal chip control over a wide range of cutting conditions and workpiece materials.