152mm Granite Drilling Quarry Tapered Drill Button Bits

• Customized: Customized
• Standard: API
• Length: Taper-length
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: 152mm
• Type: Center Drill Bit
• Material: Cobalt Steel Alloys
• Usage: Well Drilling
• Product Name: DTH Drill Bit
• Drilling Diameter: 152-165mm
• Spline: 12mm
• Port Holes: 2
• Shank Length: 240
• Wight: 16.5kg
• Color: Customized
• Gauge Type: 8*Dimeter15
• Button Type: Domend+Ballistic
• Front Buttons: 8*Dimeter14
• Head Shape: Flat Face
• Transport Package: Roro or Container
• Specification: 152-165mm
• Trademark: Hengwang
• Origin: Jining, Shandong
• HS Code: 8207191000
• Production Capacity: 1000PCS/Year
• Package Size: 50.00cm * 30.00cm * 10.00cm
• Package Gross Weight: 25.000kg

Product Description

Product Overview:

DTH drill bits can be used in the following applications:
* Mining- drill and blast holes in open pit mining, where the drill operator will drill several holes, then fill with explosives and detonate to lift rock allowing access to ore body
* RC- mineral exploration and pit grade control (needs specialized reversed circulation hammers)
* RAB - rotary air blast - mineral exploration using a conventional DTH hammer
* GW - geothermal bore holes and water wells
* Oil and Gas - Deep well bore holes: air hammers can be used as long as cutting uplift and borehole stability are ensured. For deeper wells, new DTH technologies including water hammer and mud hammer can be used to improve drilling rates in hard rocks.
* Construction industry - Piling, footings, soil nailing

Bit face shape selection:
1. Drop Center Bit
For high penetration rates in soft to medium hard and corrosive rock formations. Low to medium air pressures. Maximum hole deviation control.
2. Concave Face
The all-round application bit face specifically for medium hard and homo generous 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 the load and wear on the gauge buttons, but poor hole deviation control.
4. Double Gauge Face
This kind of face shape is suitable for fast penetration rates in medium to hard rock formations. Designed for high air pressures and good resistance to steel wash step gauge bit.
5. 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.

 

Product Specification

head shape	head diameter/mm	shank length /mm	spline	weight/kg
concave face	305	375	12	140.5
flat face	311	375	12	141
concave face	325	375	12	150
concave face	350	375	12	168
concave face	381	375	12	178
concave face	400	375	12	193.5
concave face	445	375	12	231.5
concave face	500	375	12	287

Packing & Delivery

 

Company Profile

The drill bit will packaged in standard wooden case.If your quantity is large,should shipping by container.

FAQ
1. Q: Are you factory or trader?

A: We are factory, has passed ISO, contact me showing you the factory;

2. Q: What kind of drilling rigs you have?
A: We mainly did hydraulic driling rig for soils, pneumatic drilling rig for rocks, DTH drilling rig, big diameter drilling rig, engineering drilling rig, geological exploration drilling rig etc, so you can tell me your requirements, would recommend you the suitable one.

3. Q: What certificate you have?
A: CE, ISO, BV, TUV

4. Q: Do you offer training?
A: Each model we have supplementary instruction mannual, video for installation and operation, calling instruction, and working site instruction.

5. Q: How about the warranty?
A: We machine warranty is 1 year, used famous brand parts help you find locally;
Also 3 spare parts center guarantee you get the spare parts in time.