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Original Practica Clamp Jaw

What is it?

The clamp jaw originally designed by Practica (see attached below) uses a section of the GI (galvanised) steel drill pipe cut and welded with a bolt to grip the drill pipe

Good Things

  • Uses readily available materials already found when acquiring drill pipes

Bad Things

  • Jaw tends to bend and stops it from griping drill pipes firmly
  • Bolt tends to break and takes a long time to open and close

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Cai J Williams,
16 Nov 2011, 09:55