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Non-Coring Bits

Pax-set non-coring bits are supplied with large, cylinder shaped synthetic polycrystalline diamond compact (PDC) cutter elements that are mounted in a matrix-body bit crown. The cutter elements consist of micron-sized synthetic diamond particles that are mounted onto a tungsten-carbide substrate.

Dimatec Pax-set non-coring bits are typically supplied with fully round R-Pax PDC elements.

Pax-set non-coring bits are available for hole sizes in the range of H-size (Ø 96 mm / 3.782 inch) to S-size (Ø 146 mm / 5.748 inch).

These types of bits are supplied with industry standard thread connections. Other thread connections may be available to suit specific customer needs.

Pax-set non-coring bits are supplied with cylindrical face discharge ports and large external junk slots to facilitate the ejection of the long, sheared cuttings that are typically created by these types of bits while in service.

The gauge diameter surfaces of these bits are set with a combination of thermally stable polycrystalline (TSP) synthetic diamond elements and tungsten-carbide wear pads.

Pax-set non-coring bits are recommended for use in softer unconsolidated formations with a Mohs hardness in the range of 2 to 3. Typical formation types include (but are not limited to):

  • Soft sandstone
  • Calcite
  • Lignite
  • Frozen Soil
  • Sandy limestone
  • Hard clay
  • Shale
  • Soft schist.


“325 meters with our bits very good in medium hard rock. Thank you!”

– Ontario, Canada

“The successful trial results of the bit prove this bit to be a serious alternative to our current bit of choice at our mine.”

– Australia

“I have a result from a new client in northern Ontario. Their last bits went 60 or 80 meters and with Dimatec bits 212 meter! Good production thank you.”

– North America

“We received the bits yesterday! We are quite pleased with all aspects of this order including the 4-day lead time. Thank you for the expedited service!”

“The meters drilled were above ‘the norm’ and we were well within and even under budget lets say…”

– Canada

“We had a good wear on the crown, the meters achieved are also worth commenting on being consistently all right around the 300’ mark. We’re happy and the reaming shells are also performing well.”

– North America

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