Thousands of alloy drill bits on the market are dazzling. Because alloy drill bits have almost the same appearance, they are easy to be fooled by merchants. So how to choose?

1. Processing stability

In addition to considering the drilling accuracy requirements, the stability of the processing machine tool should also be considered when selecting a drill.

The stability of the machine tool is very important to the safe service life and drilling accuracy of the drill bit. Therefore, it is necessary to carefully check the working status of the machine tool spindle, fixtures and accessories.

2. Processing accuracy

When choosing a cemented carbide drill, you must first consider the specific accuracy requirements of the drilling size.

Generally, the smaller the aperture to be processed, the smaller its tolerance will be.