Helical Roughing End Mills for 12mm Single-Sided Square Shoulder Inserts

Helical Roughing End Mills (HREM) are designed for high performance in long-edge profiling and step milling applications. These end mills are designed to be used with 12mm single-sided Square Shoulder APET/XPET inserts.

Helical Roughing End Mills for 12mm Square Shoulder Inserts

Helical ("stacked") cutters create much more tool pressure than standard end mills, due to the increased number of engaged inserts. Dapra recommends not exceeding 10% of the tool diameter in width of cut (WOC) with these HREM tools; irreversible cutter damage may occur.

To reduce tool pressure, it is recommended that the more positive XPET insert geometry be used with Helical Roughing End Mills.