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Home » Offer Board » Manufacturing & Processing Machinery » Metallic Processing Machinery » Surface-Set Diamond Core Bit (AQ)

Surface-Set Diamond Core Bit (AQ)

Surface-Set Diamond Core Bit (AQ)
Surface-Set Diamond Core Bit (AQ)
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Offer Type: Sell
Offer Post Time: Jan 04, 2012
Expiration Date: Jan 04, 2013
Details: Surface-set BQ HQ NQ PQ AQ diamond core bits

Surface-set diamond core bits can be used with any type of core barrels.
Surface-set diamond core bits are primarily recommended for use in drilling relatively soft, abrasive, unconsolidated formations that are not effectively drilled by impregnated diamond bits. They are also recommended for use in drilling harder formations where the available and are insufficient to use impregnated diamond bits due to drilling equipment limitations. Surface-set diamond core bits cannot be used in broken or loose formations.

The diamonds are mounted in a bit crown powdered metal matrix body that is fused to a steel tool body or shank. Unlike impregnated diamond core bits where the controlled erosion of the powdered metal bit crown is desirable to expose new diamond crystals, the metal bond matrix used for all surface set bits is extremely tough and wear resistant. The function of the bit crown matrix body on a Surface-set diamond core bits is to securely hold the diamonds in position throughout the operational life of the bit.

In most cases, Surface-set diamond core bits will provide higher rates of penetration than in softer formations due largely to the greater degree of exposure of the individual diamond crystals. However, as they are set with only a single layer of diamond crystals, Surface-set diamond core bits will generally yield a lower overall bit life than.

We can manufacture all kinds of impregnated diamond core bits and reaming shells according to customer's special requirement.

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