Numa’s Super Jaws® Overburden Bits simultaneously drill and case holes 5½” to 48” (139 - 1219 mm) in hard rock, overburden, boulders, or bedrock. Super Jaws utilizes wings that extend out to drill a full diameter hole while in the drilling position. Upon completion, the wings retract back into the guide body for extraction of all tooling to the surface while leaving the casing in place. No reverse rotation is required, nor any expensive rings left in the hole. Super Jaws is available in two versions, Drive Shoulder and No Drive (ND) Shoulder, for flexible drilling capabilities.
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Simultaneously Drill and Case Holes with Numa Super Jaws Overburden Bits
May 6, 2022