The surface-set diamond drill bit is a widely used drilling tool in the exploration industry, characterized by the following features and construction:
Drill Bit Appearance: Surface-set diamond drill bits are typically made of metallic materials such as steel or alloys. They consist of multiple components, including the drill bit body, cutting structure, and diamond-impregnated layer.
Drill Bit Body: The drill bit body is the main part of the drill bit and is usually made of a sturdy metal material to provide structural stability and durability. It is typically cylindrical in shape, with one end designed for connection to the drill string.
Cutting Structure: The cutting structure is located at the bottom of the drill bit and is responsible for cutting through formations and carrying rock cuttings to the surface. It typically consists of a set of cutting teeth or blades that can cut through formations while rotating.
Diamond-Impregnated Layer: The diamond-impregnated layer is a crucial part of the surface-set diamond drill bit. It is located on the cutting teeth or blades of the cutting structure and is composed of high-hardness diamond particles, which are fixed to the cutting structure through high-strength welding or impregnation processes. The hardness and wear resistance of diamonds enable the drill bit to efficiently drill through hard formations.
Drill Bit Size and Shape: The size and shape of surface-set diamond drill bits can be customized according to specific drilling requirements. Common drill bit diameters range from a few inches to several tens of inches, and the shape can be cylindrical, spherical, conical, etc.
Application Fields: Surface-set diamond drill bits are primarily used in drilling operations in the exploration industry, including oil and gas exploration, geological exploration, and mineral resource exploration. Their role in drilling is to cut through formations, provide borehole stability, and bring rock cuttings to the surface for geological analysis.
In summary, surface-set diamond drill bits are drilling tools with diamond-impregnated layers, used for efficient drilling operations in the exploration industry. Their construction and design aim to provide wear resistance, cutting efficiency, and borehole stability to meet drilling requirements in different formation conditions.
Carbon bit choice chart
Rock Type |
Rock Hardness |
Abrasiveness |
Hardness NO. |
Clay,Shale,Ash Stone,Gypsum,Tuff,Serpentinite,Calcite,
Coal,Argillite,Volcanics,Sandly Pebble |
Soft |
Medium |
BST 1/3 |
Sandstone,Lithoid Limestone, Limonite |
Medium Soft |
Very High |
BST 3/5 |
Medium Hard Sandstone,Hard Shale,
Hard Ash Stone,Dolomitic,Marble,Hard Schist,
Hard Streak Stone,Siltstone,Andestite |
Medium |
High |
BST 5/7 |
| Peridotite,Gneiss,Limonite |
Medium Hard |
Medium High |
BST 7/9 |
Pegmatite,Schist,Norite,Syenite,Gabbro,Peridotite,
Grandiorite,Granite,Basalt,Hard Streak Stone |
Hard |
Medium To Low |
BST 9/11 |
| Amphibolite,Diorite,Rhyolite,Quartzite |
Very Hard |
Medium To Low |
BST 11 |
Silicious,Hard Sandstone,Rhyolite,
Dense Quartzite,Ironstone,Taconite,Jasperite,Chert |
Utral Hard |
Low |
BST 14 |
FAQ
Q: Which countries and regions do you export to?
A: We export products to the Southeast of Asia, Russian speaking nations, Middle East, Africa,South Africa and many other countries and regions globally.
Q: What certificates are required for export products?
A: Mainly CCC quality certificates issued by China Export Commodity Inspection Bureau, ISO and CE, supporting specific national standard certificate upon necessary .
Q: What payment methods do you accept?
A: We accept bank wire transfer, letter of credit, PayPal payment and more.
Q: Is there a minimum order quantity requirement?
A: No MOQ required. We welcome inquiries for all volumes.
Q: Can you provide samples?
A: Yes, please contact us to get samples for evaluation.
