Flat bottom milling insert
HF series Millstar

Millstar’s new HF insert is designed for High Speed and High Feed machining. The HF is designed to run at high cutting speeds and feed rates with shallow depth of cut. The NEW curved geometry allows the chip to flow up and out of the cut quickly and smoothly allowing for the use of heavy chip loads. The geometry of the new HF insert generates cutting forces upward, toward the spindle, which helps eliminate vibration and deflection, allowing for very high chip loads. The HF insert is designed to fit into Millstar’s standard flat holders, style 4 (CYF, TAF and CBCYF) making these holders more versatile than ever.

The HF insert can be used in the following applications: Roughing, semi-finish of all softer materials. Nickel-based alloys and Stainless steel alloys (XRN coated) to pre-heat treated Tool steels (TLN coated). It can be used for roughing and semi-finishing of heat-treated materials up to 48 HRc.