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China Industrial Products Supplier Manufacturer List Catalog
Drilling ToolsDrill BitCore BitDiamond Drill Core BitsDiamond Drill
JIANGSU ALSTON TOOLS CO., LTD.
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Product Description Diamond drilling is a key tool in stone processing. With its super-hard characteristics, it is widely used in drilling operations of various types of stone. The following is a detailed analysis of its characteristics and applications from multiple dimensions:1. Core principle and structureMaterial advantagesDiamond (natural/artificial) is the hardest known substance (Mohs hardness 10), which can easily cut high-hardness stones such as granite and marble, avoiding the rapid wear of ordinary drill bits.Structural designCutter head: It is sintered with diamond particles and metal powder (such as cobalt and nickel). The "impregnation" process ensures that the particles continue to fall off and expose the new cutting surface.Matrix: Usually high-strength alloy steel, some high-end products use lightweight design (such as aluminum alloy matrix) to reduce hand-held operation fatigue.2. Applicable scene segmentationStone typeGranite: A high-concentration diamond bit (such as 40-50 concentration) is required to cope with the characteristics of high quartz content.Marble: Medium concentration (30-40) is sufficient, and attention should be paid to cooling to prevent calcium stone from burning and discoloration.Artificial quartz stone: Wet and dry drill bits are recommended to avoid uneven hole walls caused by the resin component swelling in water.Industry applicationArchitectural decoration: curtain wall keel installation holes, railing fixing holes.Home decoration: countertop water pipe holes, embedded appliance installation holes (such as gas stoves).Art carving: hollow carving starting holes, special-shaped cutting guide holes.3. Technical parameters and selection guideSpecification selectionAperture matching: Common diameters are 6-120mm. For large diameters (>100mm), it is recommended to use a hollow drill to reduce torque.Depth requirements: The standard drilling depth can reach 300mm. For deep hole operations, an extension rod or segmented drilling is required.Comparison of process typesType Electroplated diamond drill bit Sintered diamond drill bit Laser welded drill bitCost Low (suitable for short-term use) Medium High (industrial grade)Lifespan 500-1000 holes 2000-5000 holes 10000+ holesApplicable scenarios DIY, small batch Conventional engineering Continuous production lineIV. Operation optimization and problem handlingAdvanced skillsStep drilling method: Pre-drill the pilot hole with a small drill bit first, then change to a large drill bit to expand the hole to reduce edge cracking.Speed control: 800-1200 RPM is recommended for granite, and 1500-2000 RPM can be increased for marble.Pressure adjustment: Lightly press in the initial stage, apply pressure evenly after entering the stable stage, and slow down to prevent drilling jams when exiting.Troubleshooting of common problemsDrilling speed reduction: Check whether the cooling is sufficient and whether the cutter head is blunt (professional grinding is required).Rough hole wall: may be caused by drill bit swing, check the clamping accuracy of the equipment or use a guide frame.Abnormal noise: stop drilling immediately, check whether the drill bit is eccentric or there are metal impurities inside the stone.V. Maintenance and life extensionCleaning and maintenanceRinse the residual stone powder with clean water after each use to prevent adhesion and clogging of the cutter head pores.Soak in pH neutral detergent regularly to remove metal chip deposits.Storage specificationsHang vertically or lay flat on shockproof pads to avoid cutter head collision.Apply anti-rust oil during long-term storage, especially for alloy base parts.VI. Economic analysisCost comparison: Taking Φ20mm hole as an example, the unit price of ordinary carbide drill bit is 30 yuan (lifetime 50 holes), the unit price of diamond drill bit is 150 yuan (lifetime 2000 holes), and the cost per hole is reduced from 0.6 yuan to 0.075 yuan.Efficiency improvement: granite drilling speed is increased by 3-5 times, reducing labor time.Through scientific selection and standardized operation, diamond drill bits can significantly improve the efficiency and accuracy of stone processing, and are indispensable precision tools in the construction and decoration industries. In actual use, it is necessary to flexibly adjust parameters according to specific working conditions to maximize tool efficiency.Wet Concrete Core Bit, core bits, Diamond turbo core bit used for drilling stone concrete and building materials, ther offer drilling performance. Very free drilling and easy to do drilling operation.1. High cutting efficiency core bit2. Durable for long life use diamond core bit3. Different quality grade for clients choose4. Other special specifications and colors can be produced by clients require. DiameterWidthHeightArbor1"2.0mm8.mm5/8"-111-1/8"2.0mm8.mm5/8"-111-1/4"2.0mm8.mm5/8"-111-3/8"3.0mm8.mm5/8"-111-1/2"3.0mm8.mm5/8"-111-3/4"3.0mm8.mm5/8"-112"3.0mm8.mm1-1/4-72-1/4"3.0mm8.mm1-1/4-72-1/2"3.0mm8.mm1-1/4-73"3.5mm8.mm1-1/4-73-1/2"3.5mm8.mm1-1/4-74"3.5mm8.mm1-1/4-74-1/2"3.5mm8.mm1-1/4-75"3.5mm8.mm1-1/4-76"4.0mm8.mm1-1/4-77"4.0mm8.mm1-1/4-78"4.0mm8.mm1-1/4-79"4.0mm8.mm1-1/4-710"5.0mm8.mm1-1/4-712"5.0mm8.mm1-1/4-7
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