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3.5 Inch DHD3.5 Button Drill Bit , High Strength Steel Rock Drilling Tools

3.5 Inch DHD3.5 Button Drill Bit , High Strength Steel Rock Drilling Tools

3.5 Inch DHD3.5 Button Drill Bit , High Strength Steel Rock Drilling Tools

Product Details:

Place of Origin: HUNAN CHANGSHA
Brand Name: Tianhe
Certification: ISO9001
Model Number: DHD3.5 drill bit

Payment & Shipping Terms:

Minimum Order Quantity: 1
Price: Negotiation
Packaging Details: dth bits are packed by Woodens outer side, and Cartons inner side.
Delivery Time: Shipped in 25 days after payment
Supply Ability: 5000pcs/month
Detailed Product Description
Rock Drilling Tools: DTH Drill Bit Material: Carbide
Processing Type: Forging Color: Glod(as You Need)
Use: Blasting,mining,tunneling Project Samples: Avaliable

3.5 Inch DHD3.5 Button Drill Bit , High Strength Steel Rock Drilling Tools3.5 Inch DHD3.5 Button Drill Bit , High Strength Steel Rock Drilling Tools

 

 

 

General Introduction

 

 

 

Bit Face Shape Selection:

 

 

 

1. Drop Center Bit

 

 

 

For high penetration rates in soft to medium hard and fissured rock formations. Low to medium air pressures. Maximum hole deviation control.

 

 

 

2. Concave Face

 

 

 

The all-around application bit face specifically for medium hard and homogeneous rock formations.

 

 

 

Good hole deviation control and good flushing capacity.

 

 

 

3. Convex Face

 

 

 

For high penetration rates in soft to medium-hard with low to medium air pressures. It is the most resistance to steel wash, and may reduce theload and wear on the gauge buttons, but poor hole deviation control.

 

 

 

4. Flat Face Bit

 

 

 

This kind of face shape is suitable for hard to very hard and abrasive rock formations in applications with high air pressures. Good penetration rates an resistance to steel wash.

 

 

 

Carbide Button Shape Selection:

 

 

 

1. Semi-Ballistic Buttons

 

 

 

2. Ballistic Button

 

 

 

3. Spherical Button

 

 

 

4. Two-step Button

 

 

 

Our Advantages:

 

 

 

We have advanced production equipment & talented researchers & technicians & rich experiences in R & D and production.
We using the best quality raw materials.
We adopting advanced production technology & strict testing procedure.
We passed ISO9001 quality management system certification.
We accept OEM manufacturing and produce on your design.

 

 

 

Raw Material

 

 

 

Steel:

 

 

 

First class special alloy steel with high strength, heat resistance and wearable

 

 

 

Carbide
The best tungsten carbides from China are commonly applied.
Tungsten carbide from European is also available.

 

 

 

Quality Warranty

 

 

 

Our company response for any quality problem caused by material or machining defect.

 

 

 

 

 

Contact Details
Changsha Tianhe Drilling Tools and Machinery Co.,Ltd.

Contact Person: Ms.chen

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