The 250 set that company of Lovejoy cutting tool develops but milling cutter of big feed of type of dislocation razor blade is applied to insert milling of milling of interpolation of mill, circle, brae and reaming treatment. The 250 set that company of Lovejoy cutting tool develops but milling cutter of big feed of type of dislocation razor blade is applied to insert milling of milling of interpolation of mill, circle, brae and reaming treatment. The nitrogen that this company rolls out changes razor blade of silicon pottery and porcelain to be able to be used at machining casting pig (50mm of cutting tool diameter, linear cutter track, cutting speed 4000r/min, feed leads 8130mm/min, cutting deepness 0. 76mm) . The diametical norms of standard milling cutter is 30 ～ 100mm; Those who take lengthen straight power establish norms of milling cutter diameter to be 30 ～ 38mm; The diametical norms of face milling cutter is 50 ～ 100mm. CNC Milling