the life of the milling tool 110 fig7 shows an end view of the milling end 204 the one or more blades 210 are bent in a manner that gives the blades 210 a self supporting rigidity the one or more blades 210 have a length l and a width w the one or more blades 210 have a bend 700 formed in the blades 210 the bend 700 creates two blade legs 702 a and 702 b which extend from the bend at an angle u03b8 in one example the optimal angle is 50 60 degrees the angle u03b8 may be any suitable angle that gives the blades 210 self supporting rigidity the length of each of the legs 702 a and 702 b may be equal or not equal depending on the milling operation deflection may be calculated using the following the legs 702 a and 702 b are shown as extending beyond the reinforcing structure 216 however the legs 702 a and 702 b may be arranged to not extend beyond the reinforcing structure 216 or the face 208 although the bend 700 is shown as having a constant radius it should be appreciated that the angle u03b8 may be created in any manner for example two plates may be welded at a point thus having no bend or the radius of curvature could vary between the legs 702 a and 702 b further each blade may have more than two legs 702 all at various angles relative to one another this geometry of the blades 210 allows the height of the blades to increase well beyond 2 u2033.