The wrench is an indispensable tool in the plastic tool box. Whether it is daily life or work site, auto repair, etc., the wrench is always not separated. The wrench has many types and there are different uses in different occasions. The Allen wrench is a kind of hardware tool used to rotate the head into hexagonal bolts or screws. Next, Xiaobian will tell you how to distinguish the model of the wrench. What are the specifications of the Allen wrench?
How to distinguish the model of the wrench? (Taking an open-end wrench as an example)
7,8,10,14,17,19,22,24,27,30,32,36,41,46,55,65; corresponding thread specifications are M4, M5, M6, M8, M10, M12, M14, M16, M18, M20, M22, M24, M27, M30, M36, M42.
7--M4, 8-M5, 10-M6, 14--M8, 17--M10, 19--M12, 22--M14, 24-M16, 27--M18, 30--M20, 32--M22, 36--M24, 41--M27, 46--M30, 55--M36, 65--M42.
The minimum size of the full set of allen wrenches is 3, and the corresponding relationship is S3=M4, S4=M5, S5=M6, S6=M8, S8=M10, S10=M12, S12=M14-M16, S14=M18-M20, S17=M22-M24, S19=M27-M30, S24=M36, S27=M42.
Calculate the diameter of the bottom hole of the thread before tapping; for the brittle material, follow the basic size -1.0826 thread pitch, for the plastic material according to the basic thread size - pitch +0.1.
The brittle material is in pure cutting state during tapping, and the bottom hole size is the diameter of the bottom circle of the thread. When the plastic material is tapped, plastic deformation occurs due to the force of the material, and the material will move to the thread path, so the bottom hole should be properly enlarged. .
For threaded holes below M6, regardless of the material properties, the basic size-pitch is unified.
What are the specifications of the Allen wrench?
The specifications of the Allen wrench are set according to the size of its internal Liu square section. In general, the Allen wrench models are: 2, 2.5, 5, 6, 8, 10, 12, 17, 18, 22, 24, 32 and so on. The specifications of the Allen wrench are: T30, T50, T60, and T80. In addition, the Allen wrench has the difference between a single head and a double head, and its specifications will have more detailed division.
How to distinguish the model of the wrench? What are the specifications of the Allen wrench? For everyone to introduce here, the Allen wrench is different from the ordinary screwdriver, mainly through the torque force, can save the user's strength. Allen wrenches are generally used in the furniture installation process and are not commonly used.
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