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method and device for the manufacture of, in particular, as bits designed schraubwerkzeugen in kreuzschlitzform or the like
method and device for the manufacture of, in particular, as bits designed schraubwerkzeugen in kreuzschlitzform or the like
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机译:的方法和装置,用于制造特别是设计为克罗伊茨施利茨形或类似形式的施劳布韦克祖根钻头
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摘要
Cold-forming process esp. for screw driver bits of cross slot form or similar from a cut-to-length bar blank, whereby a hexagon head is formed at one end of a round bar blank and the opposite end is then placed axially spring supported in the free space between several die segments and the cross slot (or similar) profile is formed by concentric closing of the die segments.
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