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HRM Double High Feed Mill

High Feed Indexable End Mill With 6 Cutting Edges – Ultimate Metal Removal Rates

  • 6 cutting edges per insert
  • Small depth of cut (<2mm) and high feed rates (<2mm per tooth)
  • High rake angle cutting edge and chip breaker reduces cutting load
  • Unique insert design for high feed and multifunctional machining
  • Face mill, end mill or screwed shank
  • Ideal for roughing, medium cutting, copy milling, helical cutting, facing or shoulder milling

High feed milling is a relatively new concept but offers the best metal removal rates of any indexable milling tool.  The concept involves running at very high feed rates up to 2mm per tooth (around 400% higher than a traditional face mill or end mill) with a small depth of cut (1-2mm).  The small entering angle of the insert creates a chip thinning effect which has very low cutting resistance and make for much shorter cycle times than traditional indexable milling methods.  It is also much kinder on  the machine spindle as the small cuts create much less vibration and in turn spindle wear.

The Korloy HRM Double milling system gives the best metal removal rates in steel and stainless steel by using high feed rates (1.0-2.0mm/tooth) combined with a small depth of cut (1.5mm-2.5mm). Metal removal rates can be increased by around 50% compared to conventional milling.


HRM Double inserts are available in 2 sizes: WNMX09 for lighter machines and WNMX13 for larger machines.  Each insert is double sided with 3 cutting edges per side (6 in total).  We recommend using HRM Double for roughing out or facing off and using a finisher for final operations such as 90 degree corners for optimum cycle times.  Call us today to talk through your application or buy now.