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People who know something about NC cutting tools should know several kinds of tool handles, and also know something about basic cutting tools. But for the detailed classification of the handle, the advantages and disadvantages of each major handle, I believe we should not understand so comprehensively. Let me introduce it to you. The first is a relatively old-fashioned handle, side-fixed handle, using two screws to fix the tool, simple and fast, clamping force. But the versatility is not very good. Only tools with the same shank neck can be installed for each type of shank.

People who know something about NC cutting tools should know several kinds of tool handles, and also know something about basic cutting tools. But for the detailed classification of the handle, the advantages and disadvantages of each major handle, I believe we should not understand so comprehensively. Let me introduce it to you. The first is a relatively old-fashioned handle, side-fixed handle, using two screws to fix the tool, simple and fast, clamping force. But the versatility is not very good. Only tools with the same shank neck can be installed for each type of shank.

The handle is heated to a certain degree, and the clamping part of the handle is slightly enlarged by using the method of thermal expansion and contraction. Put the knives in. The tool was fixed after cooling. Its advantage is high precision, generally within 2um. The clamping force is relatively large, the support is good, and the radial runout is 2um-5um. However, each handle can only be installed with a handle diameter of the tool. And every time the knife is changed, the damage to the handle is greater. If it is Nissan, it can only be used about 200 times, and if it is made in Germany, it can only be used about 600 times.

There is also a hydraulic tool handle. Personally, I think the design principle of this tool handle is very interesting. Using hydraulic fixed tool handle has very high precision and end face runout is generally 2um. The clamping force is very large, the rigidity is good, and it can transmit higher clamping torque. However, he has a very heartbreaking shortcoming, that is, the price is too expensive, which can be said to be the most expensive handle.

There is also the cold press/GP handle, which is slowly popular now. The way to install the handle is by machine. The machine pushes the tool up with great force. Because its surface is coated, its durability is very high, usually more than 20000 times. Its clamping force is also very large. The disassembly and assembly time is short, and the circumferential radial runout is 0.003mm.

There are also many kinds of shanks such as the most used spring chuck shanks, which are fixed with spring collets. There is also a tap handle that uses screws to fix the tool and so on.