4 Inch Drill Bit

price: Negotiable
Total supply:
Delivery term: The date of payment from buyers deliver within days
seat: Henan
Validity to: Long-term effective
Last update: 2019-03-13 10:26
Browse the number: 170
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Product details

Product Introduction

PDC drill bit is brazed from a PDC tool to a steel body or matrix body. The drill diameter is typically 2 inches (50 mm) to 8 1/2 inches (216 mm). Compared to tungsten carbide drills, PDC drills have higher drilling efficiency and longer service life. Commonly used diameters are 76mm, 90mm, 100mm, 127mm, 146mm, 153mm, 216mm. 4 Inch Drill Bit is one of the best-selling products.


Suitable for rock formations below f18, such as granite, limestone, sandstone, mudstone, etc. Mainly used for coal mining, water wells, geothermal wells, drilling, geological exploration, drainage holes, gas drainage holes, blast holes, etc.


▷ High quality - The 4 inch drill bit has the hardness and wear resistance of diamond, and also has the strength and impact resistance of the tungsten carbide alloy structure.

▷ Long life - The life of the PDC drill bit is several times that of the cemented carbide drill under the same conditions.

▷ High efficiency - 4 inch drill bits can greatly reduce the drilling rate, and the average time efficiency can be increased by more than 2 times, reducing the construction intensity of workers.

▷ Wide application range - it can have rock formation penetration of f≤18

How to Choose the Right PDC Bit?

1. Tell us what diameter you want to drill.

Then we can know which size drill is right for you.

2. Tell us what rock formation you want to drill.

Then we can know which PDC bit is right for you.






Rock Formations





API Thread

f below 18, like granite, limestone, sandstone, mudstone, etc.

Coal mining, water well, geothermal well, geological exploration, borehole, gas drainage hole, discharge water hole, blast hole, etc.

We can also produce and design according to each customer's drawings/samples/requirements.


PDC (Polycrystalline Diamond) Cutter & Carbide Steel


Each pc is wrapped in a bubble film and then placed in a carton or wooden box.


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