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Drilling Bits

Your Professional Drilling Bits Supplier

D Miningwell is a manufacturer and exporter of drilling and mining equipment with over 20 years of production experience. Founded in 2001, we operate our own workshops and R&D team, providing rock drills, DTH drills, top hammer drills, rotary drilling rigs, water well drills, and related tools. Our products are widely used in mining, quarrying, construction, and water well drilling.

Manufacturing & R&D Capability

We own production workshops for drilling rigs, DTH hammers, and drill pipes, supported by an experienced engineering and R&D team focused on practical product improvement.

Quality Control System

All raw materials and processes are strictly inspected, with traceable records to ensure stable quality and compliance with specifications.

Professional Service & Support

Our technical team provides installation guidance, training, and on-site maintenance support, helping customers reduce downtime and operating costs.

OEM Support

We accept all OEM orders, just contact us and send me your design. We will offer you reasonable price and make samples for you as soon as possible.

Parameter

DIAMETER		BUTTONS		FLUSHING	CARBIDE	FACE
MM	IN	GAUGE NO/ SIZE	FRONT NO/ SIZE	HOLE	PROFILE	PROFILE
32	1 1/4"	5x7	2x7	IF1G	Parabolic	Flat
36	1 13/32"	5x8	2x7	2F1G	Conical	Flat
38	1 1/2"	5x9	2x7	1F2G	Conical	Flat
38	1 1/2"	5x9	2x7	2F 1G	Conical	Flat
38	1 1/2"	5x9	2x7	2F1G	Conical	Flat
40	1 9/16"	5x9	2x8	2F 1G	Conical	Flat
41	1 5/8"	5x9	2x8	2F1G	Conical	Flat
41	1 5/8"	5x9	2x8	2F 1G	Parabolic	Flat

DTH Down The Hole Drill Bit High Pressure Hammer Rock Bits

Types of Drilling Bits

The drilling bits produced by our company mainly include the following types:

Threaded Button Bits
Top hammer drill bits are commonly used for rock drilling in mines and buildings, involving a combination of impact and rotation actions. And the threaded button bit lies in the thread design at the connection with the drill rod.

Tapered Button Drilling Bit
Tapered Button Drilling Bits are specifically designed to tackle the toughest drilling conditions, especially in hard rock formations. These versatile and durable bits offer high performance and long-lasting reliability.

Tricone Bit
The Tricone Bit is a highly efficient and durable drilling tool designed for various drilling operations including water well drilling, oilfield exploration, and mining projects.

Advantages of Drilling Bits

Enhanced Durability

The synthetic diamond layer on PDC cutters ensures exceptional hardness and wear resistance. This layer allows the bits to maintain cutting efficiency over extended periods, reducing downtime and tool replacement costs.

Improved ROP (Rate of Penetration)

Thanks to their efficient cutting action, PDC bits deliver faster drilling speeds than traditional bits. This results in lower operational costs and increased productivity.

Versatility

PDC bits are designed to handle various geological conditions, from soft to hard formations. Their adaptability makes them ideal for use in diverse industries, such as oil and gas, geothermal energy, and construction.

Reduced Vibrations

The design of PDC bits minimizes vibrations during drilling, resulting in smoother operations and less wear on the drilling equipment.

Applications of Drilling Bits

Manufacturing & Fabrication: For CNC and manual drilling operations in metals

Construction: Wood frame drilling, metal studs, and concrete anchoring

HVAC & Electrical: Precision drilling for ducting, conduit, and panel work

Aerospace & Automotive: Demanding applications that require tight tolerances and specialized coatings

Three-wing PDC Drag Bits For Drilling Water Wells

Different Coatings for Drilling Bits

Black Oxide

Ideal for general-purpose drilling in wood or soft metals, offering corrosion resistance and extended life

Titanium Nitride (TiN)

Great for high-speed drilling in hardened materials; provides excellent wear resistance

Cobalt

Not a coating, but a material often blended into high-speed steel (HSS) to improve heat resistance—excellent for drilling stainless steel and other tough alloys

Carbide Tipped

Perfect for hard materials like masonry, tile, or even hardened steel

Uncoated (Bright Finish)

Best for non-ferrous metals and plastics where coating isn’t needed

Common Mistakes to Avoid When Using Drilling Bits

Using the wrong drill bit

Choosing the wrong type or size of drill bit can damage the material being drilled, the drill bit itself, or even the drill. Always use the appropriate drill bit for the material and project being worked on.

Applying too much pressure
Applying too much pressure on the drill can cause the bit to bend or break, damage the material being drilled, or cause injury to the user. Let the drill do the work and apply gentle and steady pressure to avoid damaging the bit or material.

Overheating the bit
Overheating the bit can cause it to become dull and ineffective, or even melt and break. Use the proper speed setting for the drill, and apply lubrication or cooling agents to reduce friction and heat buildup.

Neglecting to use safety gear
Failure to use proper safety gear such as safety goggles, gloves, and earplugs can lead to injury or long-term health problems. Always wear the appropriate safety gear when using a drill to protect yourself from flying debris, loud noises, and other hazards

Customizable Options

● Custom logo and surface color
● Non-standard diameters and IADC grades
● API thread customization
● Branded packaging for OEM clients

Packaging and Shipping

Packaging	Steel frames, plywood cases, or wooden crates
Shipping	We usually go by sea transportation, because it is more convenient and cheaper.

Our Factory

In July 2001, D Miningwell's predecessor, Quxian Technology Filter Factory, was established. In 2017, established Zhejiang Minsheng Supply Chain Management Co., Ltd. and started the foreign trade journey.

Our Certificates

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FAQ

Q: How do drilling bits differ by formation?

A: Drilling bits are designed based on rock hardness and structure. Soft formations need sharp and wide drilling bits, while hard rock requires strong and wear-resistant drilling bits. Using the wrong drilling bits may cause slow drilling, high vibration, or early failure. Matching drilling bits to formation type ensures smooth and safe operation.

Q: What materials are used in drilling bits?

A: Drilling bits are commonly made from alloy steel, tungsten carbide, and PDC cutters. Steel bodies provide strength, while carbide improves wear resistance. High-quality drilling bits use advanced materials to handle high pressure and temperature. The right material choice helps drilling bits last longer and perform better in tough conditions.

Q: When should tricone drilling bits be used?

A: Tricone drilling bits are suitable for a wide range of formations, from soft clay to hard rock. These drilling bits use three rotating cones to crush and cut rock. Tricone drilling bits handle changing ground conditions better than fixed-blade bits. They are widely used in water well drilling and oilfield operations.

Q: What thread types are common for drilling bits?

A: Drilling bits often use API REG, IF, or FH threads. These standard threads allow drilling bits to connect securely with drill pipes. Choosing the correct thread ensures safe operation and easy installation. Proper thread matching prevents damage and improves drilling stability.

Q: Are drilling bits reusable?

A: Some drilling bits can be rebuilt or reused if wear is limited. Tricone drilling bits may be repaired by replacing worn teeth or bearings. However, severely worn drilling bits should be replaced to avoid poor performance or safety risks.

Q: What causes drilling bits to wear fast?

A: Drilling bits wear quickly due to hard formations, high speed, poor lubrication, or wrong bit selection. Using unsuitable drilling bits increases friction and impact damage. Regular inspection and proper operating parameters help reduce wear and improve drilling bits durability.

We're professional drilling bits manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to wholesale drilling bits made in China here from our factory. For price consultation, contact us.

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