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本文介绍了一种用于高锰钢钻削的新型硬质合金浅孔钻。该钻头没有横刃，钻芯附近的刀刃为圆弧型。该钻头在使用中获得了较好的效果
This article describes a new type of carbide shallow hole drills for high manganese steel drilling. The drill has no chisel edge, the edge near the drill core is arc-shaped. The drill in the use of obtained good results