The HMLC Core Bit is a twin/triple-tube diamond-impregnated core drill bit, a large-size specification in the MLC series, primarily used for hard rock core drilling in geological and mineral exploration. It employs a unique “hard matrix + low-concentration diamond” formula, optimizing the compatibility between the matrix and diamond to achieve high drilling speed, long service life, and stable core sampling under harsh conditions.
Below are the main Crown Profiles
 | STANDARDGeneral purpose design, suitable for a wide range of rock formations Great performance of fluid circulation for cooling the bits Customized design for the numbers of waterways easily Available with wider or larger waterway channels |
 | WEDGESuperior flushing capabilityImproved cutting speedSuitable for broken and high abrasive rocks and formationsAvailable with wider or larger waterway channels |
 | TURBOSuitable for high-speed drillingSuitable for competent formations and rocksFree cutting of waterways with greater ejection of fluid and reducing pressure across the bit face because of jetting effect. Available with wider or larger waterway channels |
 | ROUND FACE DISCHARGEDesigned to minimize flushing of core samplesOffers excellent flushing to prevent blockage in waterway channels and minimize flushing of core sample and reduce the undesirable core erosionSuitable for broken or granular formations and rocks |
 | ELONGATED FACE DISCHARGESuitable for broken, sedimentary or metamorphic formations and rocksElongated hole is with better water flushing and more efficient water flow, can prevent bit burnt during drilling due to lack of water |
 | VORTEX PROFILEImprove the drilling efficiencySuitable for soft to medium-hard rocks and formationsAvailable with wider or larger waterway channels |
Matrix Height
 | This refers to the diamond impregnated matrix height.XIZUAN can offer many kinds of core bits with different matrix heights from 6mm-20mm, according to Customers’ requests.Unless otherwise specified, a standard 12mm matrix height is recommended. |
Matrix Hardness
Different hardnesses can be provided according to kinds of rocks to be drilled with different hardness and abrasiveness.
Advantage
1. Increased drilling efficiency: By reducing wear and tear and the frequency of replacement of drill bits, drilling efficiency is significantly improved.
2. Reduced drilling costs: Optimized diamond size, concentration, and matrix type ensure the lowest drilling costs in formations of varying hardness and abrasiveness.
3. Enhanced stability: The reinforced rib design improves the stability of the drill bit, reduces vibration, and thus extends the service life of the drill bit.
Selection and Use
1. Selection based on geological conditions: Choose the appropriate diamond size, concentration, and matrix type based on specific geological conditions (such as rock hardness and abrasiveness).
2. Customization options: We offer customized services and can produce non-standard size drill bits according to customer requirements.
3. Quality control: Strict quality control ensures that every product undergoes rigorous inspection and testing before leaving the factory.
Packing
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