Smart card draw -in groove founds milling cutter

The utility model is suitable for a cutter technical field provides a smart card draw -in groove founds milling cutter, include the cutter body and locate the cutting part of cutter body one end, thecutting part be provided with main cutting edge, profile cutting sword and from the grinding major trough that the cutting part front end was seted up backward, main cutting edge, profile cutting sword and grinding major trough are two, two midplane has between the main cutting edge, the midplane process the centre of a circle of cutting part is just with two the main cutting edge equidistance sets up, two the main cutting edge all has main back knife face, two the junction of main back knife face is provided with the chip groove, two the degree of depth of grinding major trough is 30% of cutting part diameter 50%. The utility model provides a smart card draw -in groove founds milling cutter, its after through the main cutting edge to milling cutter, main cutting edge the chip groove and the grinding major trough