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介绍了错齿深孔钻的结构特点、优点及使用情况。——编者改进結构的深孔钻的耐用度平均提高35%。分离配置的硬质合金刀齿减小了切削抗力,且使之更加均衡。在不减小进給量的情况下,能使钻削力减少20%。
The structural features, advantages and usage of the wrong-tooth deep hole drilling are introduced. - Editor’s note Improved durability of deep hole drills with an average increase of 35%. Separate carbide inserts reduce cutting resistance and make it more balanced. The drilling force can be reduced by 20% without reducing the feed.