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duckbill pick

A duckbill-shaped coal-cutter pick that is forged by the roller type of machine from dies and is the type largely used today. The machine shaping of the pick ensures uniformity. It gives a constant clearance as the point wears down and is particularly suitable for fused-carbide tipping.

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Penulis

  • ed.young
  • (Milwaukee, United States)

  •  (V.I.P) 21084 poin
  • 100% positive feedback
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