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Continuous chip blockage and difficulty in chip removal
When processing soft materials such as aluminum and stainless steel, the chips are long and continuous, which can easily wrap around the spiral groove of the drill bit, resulting in poor chip removal and a sudden increase in cutting force
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Intermittent cutting vibration
High frequency vibration caused by cutting force impact during the processing of brittle materials such as cast iron and carbon steel
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Severe wear and tear of high hardness materials
When processing materials with HRC50 or higher, the wear rate of the rear cutting surface of the drill bit increases
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Unstable aperture accuracy and surface quality
Scratches on the inner wall of the hole caused by blade wear and residue
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Poor adaptability in processing special materials
When processing ceramics and glass, the drill bit is prone to chipping, and when processing high-temperature alloy materials, it is easy to form chip lumps