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A side hole machine is a machine used for processing wood, typically for punching or cutting holes in wood. The method of fixing the side hole machine depends on the type and design of the machine, but the following are some common methods:

1. Fixed by fixtures: Side hole machines are usually equipped with fixtures that can fix the machine on the workbench. Fixtures typically consist of two jaws that can securely fasten the machine to the workbench.

2. Fixed by bolts: Side hole machines are usually equipped with bolts to secure the machine to the workbench. Bolts are usually fixed to the workbench with nuts to ensure that the machine is firmly secured to the workbench.

3. Fixed by casters: Side hole machines are usually equipped with casters, which can move the machine to the desired position. Casters can usually be locked to ensure that the machine does not move during operation.

Regardless of the method used, it should be ensured that the side hole machine is firmly fixed on the workbench to prevent the machine from moving or shaking during operation. In addition, it should be ensured that the power cords and cables of the machine are fixed in appropriate positions to prevent the cables from being pulled or damaged during operation.