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Rockpecker - Model VRS -Roller-Cone Embedded Hole Opener
Versitile hole opener with centralisation: This roller-cone embedded hole opener is intended for soft to very hard formations where `crushing` the rock is superior to shearing. Our hole opener is equipped with one of its kind unibody spiral centralisation, which enables smoother drilling.
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Manufactured from One single piece of AISH 4140 still in a fully non welded construction reducing the possibility of cracking
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Unique “Dove Tail” insertion / Locking system allowing a large range of cutter types to be interchanged in the field, WOB on the reamer presses the cones into the body
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They are bi directional for pull or push reaming applications
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Some of the cutters are interchangeable with other bodies, for example the 12” and 15” tools have the same cutters as do the 18”, 20” and 24” so single cutters can be replaced or sets taken from one to another
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The body can be 3D scanned, built up and Hard faced to as new.
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Front and rear Tungsten carbide nozzles pointing in the direction of the drill string not at an angle
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Tungsten inserts on the wearing edges
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Rear cutting wings and tapered rear make the reamer easier to push out if required
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Cutters are from Proven Tricone assemblies