High-speed steel step drills are mainly used for drilling thin steel plates within 3mm. One drill bit can be used instead of multiple drill bits. Holes of different diameters can be processed as required, and large holes can be processed at one time, without the need to replace the drill bit and drill positioning holes. At present, the integral step drill is made of CBN all-grinding. The materials are mainly high-speed steel, cemented carbide, etc., and the processing accuracy is high. According to the different processing conditions, the surface coating treatment can be carried out to extend the service life of the tool and enhance the durability of the tool.
Precautions for the use of pagoda drill bits:
1. The drill bit should be packed in a special packaging box to avoid vibration and collision;
2. When using, take out the drill bit from the packing box and install it into the spring chuck of the spindle or the tool magazine of the automatic drill bit, and put it back into the packing box when it is used up;
3. Always check the concentricity of the spindle and the collet and the clamping force of the collet;
4. When the drill is sharpened, the two main cutting edges of the twist drill should be sharpened as symmetrically as possible.
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Post time: Dec-22-2021
