D Miningwell China Made High Quality Color Customized Drilling Bits DTH Drill Bits

• Customization: Available
• After-sales Service: Video Technical Support, Online Support, Spare PAR
• Certification: ISO 9001:2000
• Transport Package: Carton
• Specification: 23X18X23 cm
• Trademark: D Miningwell
• Origin: Zhejiang, China
• Production Capacity: 5000PCS Per Month

Product Description

DTH Drill Bit
The D Miningwell low air pressure DTH drill bits used for 65-220mm diameter hole drilling,good performance in drill Granite, Marble,  Limestone, Basalt, ect. It's mainly used in Blast holes, Quarry , Anchoring, Infrastructure, Geothermal holes

Our DTH Bits has following advantages:
1. 95% quality similarity with world top class brands,such as atlas Copco etc.
2. Strong ability in drilling tools production.
3.Strick quality control.

CIR series Low Air Pressure DTH Drill Bit
Type	Dia (mm)	Spline No. (PCS)	Weight (kg)
CIR65	68		2.5
CIR70	76		3.4
CIR80	83		3.45
CIR80X	83		3.5
CIR90	90		3.5
CIR90	100		4.5
CIR90	130		9.5
CIR110	110		6.4
CIR110	123		8.5
CIR110W	110		6.5
CIR110W	123		8.8
CIR150	155		12
CIR150A	155		12.5
CIR150A	165		14
CIR170	175		15.5
CIR170A	185		16
CIR200W	200	6	48
We can design and manufacture according to customer's requirement of the Bit Dia, No. of air holes, Carbide button shape and the face shape.

DTH drill rod 

Thread: We can produce all threads that comply with API international standards, and guarantee precision processing. The thread material is 35CrMo, and it has undergone high-quality heat treatment and nitriding treatment to ensure the hardness and service life of the thread.

Rod body: We can supply drill rods with diameters of 42mm-203mm, and the maximum length can be made up to 12 meters. We choose DZ40, R780, G105, S135 and other rod materials according to the needs of different customers and the use scenarios of drill rods, and the wall thickness can be 4.5mm-12mm.

Welding joint: Each drill pipe has undergone a pier thickening process, and the maximum inner/outer pier thickness can be up to 24mm, which increases the friction welding area and ensures the stability of the welding joint.