The design that Kennajin belongs to the SE that the company develops to get bit of pointed hard alloy is European broach is classical. Of the bit of SE HPC high-powered hard alloy that is used at casting pig treatment get a needle to be S form, helix discharges bits chamfer, two blade cutting, additional action is supported since two side edge, can decrease get a tip the vibration in treatment, improve treatment efficiency and cutting tool life, the treatment circularity that improved opening at the same time, cylinder is spent and surface roughness. Use SE broach, treatment life can increase 1800 opening by 400 original aperture. CNC Milling