|Place of Origin:||CHANGSHA,HUNAN|
|Minimum Order Quantity:||1|
|Packaging Details:||dth bits are packed by Woodens outer side, and Cartons inner side.|
|Delivery Time:||Shipped in 25 days after payment|
|Color:||Glod||Materail:||Alloy Steel And Carbides|
|Processing Type:||Forging||Dth Bits Matched Hammer:||DHD380 Hammer|
|Button Shape:||Spherical, Ballistic, Semi-ballistic||Bit Face Shape:||Flat, Concave, Convex, Drop Center|
1.15 years focus on rock drill bits manufacture.
2.High quality steel.
3.High abrasion resistant cemented carbide.
4.Advanced heat treatment technics.
5.Professional vacuum sintering technique.
6.Factory direct sales with competitive price.
7.Sufficient stock with full types.
8.Perfect after-sales service. Free replacement is provided if there is quality problem with our products.
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
first class special alloy steel with high strength, heat resistance and wearable
The best tungsten carbides from China are commonly applied.
Tungsten carbide from European is also available.
2.12 years experience
3.Can match to the original bit shank