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Vigor’s Hole openers are available with carbide-milled teeth and insert cutters. Arms and cutters are hardfaced for protection in three different designs for varying conditions and rock formations. The design of the hole opener allows for field-changing cutters.Special size is also available with detail well condition.
They are used to enlarge the diameter of a pre-drilled hole or connected with a bit on front end to drill pilot hole and enlarge hole simultaneously.
Material: AISI 4145H fully heat-treated alloy steel.
