The keyway milling cutter (taper shank) generally has a blade length of 22~50 and a straight shank of 5~25, depending on its diameter. The bit is generally 78~270 (taper shank) and the straight shank is 6~100, depending on the diameter
How long you want to have how long, if not, you'll need to order, like a drill bit
The milling cutters and drills are of the specified length according to the national standard, such as the ordinary length, the lengthened and the special onesUsually according to the length of processing parts to choose, can not be too long, long easy to break, but also can not guarantee the accuracy of processing parts, because the length is long, the milling machine swing large, poor rigidity, it is easy to break
The keyway milling cutter (taper shank) generally has a blade length of 22~50 and a straight shank of 5~25, depending on its diameter. The bit is generally 78~270 (taper shank) and the straight shank is 6~100, depending on the diameter