1 7/8 inch Impregnated Diamond Core Bit is well known as AQ size, it is a smaller size diamond drill bit and made by diamond and steel, cutting teeth have different shapes, such as circular profile, ladder profile, point profile, round profile, serrated profile, flat face profile and turbo profile. Circular profile Core Bit is stable in use to cut broken, abrasive, and large grain sized rock; ladder profile diamond bit has high penetration rate and mainly use to cut unbroken or slightly fractured rock; point profile core bit is use in free cutting of very hard formation with faster penetration; Round profile Diamond Core Bit is use in free cutting stable, low abrasive, har and slippery rock; Serrated profile core bit use in cutting soft rock, this design supplys better fluid flow and protect the bits from burning; Flat face impregnated drill bit use in thin wall and single tube and casing shoe; While the turbo core bit use for broken formation. Except for AQ diamond bit, we also supply size for BQ, NQ, NQ2, NQ3, NMLC, HQ, HQ3, HMLC, PQ, PQ3, SQ etc.



Except for aq diamond core bit, we also supply bq, nq, nq2, nq3, hq, hq3, pq, pq3 bit and their matched reaming shell, core barrel, and also casing shoe, rod shoe, casing rod, drill rod, adapters etc, welcome to contact us if you are interested in any of them.

