The model number of the flat-blade screwdriver is expressed as the width of the cutter head*. For example, 2 x 75 mm means that the width of the cutter head is 2 mm and the length of the rod is 75 mm (not full length).
The blade of the screwdriver must be ground correctly, and the sides of the blade should be as parallel as possible. If the blade is tapered, the blade will easily slip out of the screw slot when the screwdriver is turned.
The screwdriver has no round head because the round head has no torque at all. The word is to ensure that there is torque, and the cross allows the power to be distributed more evenly.
Screws are the main fasteners in mechanical equipment. Open-end wrenches are an important tool for processing, production and maintenance in the mechanical industry. This project is a revolution in traditional wrench tools, and it has the following a
The new alloy saw blade has passed the qualified inspection at the factory, and generally there will be no deviation. Only after improper use will the deviation occur.
The layout of the tape is mainly yellow and white in color. The layout of the ruler is mainly divided into four categories: full-metric system, full-English system, metric system, and Luban tape measure.
