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34inch Mill tooth Hole Opener
Product description
400mm Hole opener/Rock Reamer
Thead:4 1/2 reg pin
IADC code:637
Cone size:8 1/2inch(each cone size13.5cm)
Cutter Number :4pcs
More sizes for the hole openers can be manufacturered .
Application: for water well drilling,enlarge holes,construction .
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Contact:
Email:sales@crossingbit.com
Tel(whatsapp):0086-15032448780