Anatomy of a High-Feed Insert

These tools exploit chip thinning to enable efficient roughing at high feed rates and light cutting depths.

Inserts on tools like Horn’s DAH 62 series cutters, shown here,
combine low lead angels and large edge radii to maximize chip thinning. 


Given the increasing popularity of light, fast passes for hogging out lots of material in a hurry, manufacturers have no shortage of choices when it comes to high-feed milling tool designs. At some level, however, virtually all high-feed inserts derive their advantages from similar geometry. This examination of Horn USA’s latest offering, the DAH62 series, provides an overview of these common features as well as advantages specific to that line.