Detailed Product Description Milling drill bits setSize(mm)Qty (sets/CTN)Means (cm) ... *307.5/6.5Model 43,5,6.4,810026*22*139.5/8.5Model 53,4,5,6,7 ... ,6,8,108037*25*1712/11Model 175,6,89032*22.5*184.6/3.6Model 18 1/8,5/ ... *21*309/8Model 191/8,3/64,1/49032*22.5*184.6/3.6 Made of High Speed ... sheet metal, plastics, wood and thin-walled metrials.Twist drill at the front, turning into a milling cutters with chip ...