Who can explain the letter consciousness on the tool box?

Take Tektronix's toolbox for example. The other two Teguks are similar to Mitsubishi's. TNMG 160404-TSF refers to the blade model, in which the first letter T indicates that the blade is triangular, the second letter N indicates that the rake angle of the blade is 0, and the third letter indicates that the blade accuracy is m, that is, the sintered blade. The fourth letter indicates the type of tool hole and groove, and G indicates double-sided slotting and double-sided countersunk head. 16 indicates that the cutting edge length of the blade is about 16, 04 indicates that the thickness is about 4, 04 indicates that the arc radius of the tool tip is 0.4 mm, and TSF indicates the groove type of the blade. GT730 indicates the material of the blade, and the following P:Steel indicates that this material is used to process steel parts. The following are the recommended processing parameters. I hope I can help you. In addition, p stands for steel. M stands for stainless steel, K stands for cast iron, N stands for nonferrous alloys, such as aluminum and copper, S stands for difficult-to-machine materials, such as nickel alloy, titanium alloy and high-temperature alloy, and H stands for high-hardness materials.