Varel engineered its reverse circulation bits to deliver exceptional drilling performance in the soft to medium formations typically found in mineral exploration, and to provide the lowest cost per foot of drilled hole. All Varel RX and RC bits are precision machined to work with most existing R/C systems and are available with both sealed and open bearings.
All reverse circulation bits feature:
Cutting structures designed to provide fast penetration rates and durability. A center hole with the maximum diameter possible for superior hole cleaning and cuttings retrieval.
Open bearing products feature:
Precision roller bearings with special thrust elements to prevent axial wear. Pilot pin with hardmetal inlays against a tool steel bushing for cooler running bearings.
Sealed bearing products feature:
Fully pressure compensated, non-serviceable lubrication to journal bearing. Hardmetal inlays on all bearing contact surfaces with silver plated cone bearings. Specially formulated seal compounds. High temperature bearing grease lubricant to help the bearings run cooler. Seals developed for abrasive environments providing longer bearing life.