• Model NO.：DHD 3.5-138
• Machine Type：Drilling Tool
• Processing：Forging
• Color：Red, Black, Yellow, White
• Bit Face Type：Convex Face
• Application：Quarrying,Mining
• Approx. Weight：16.0 Kgs
• Transport Package：Wood Package
• Specification：CE
• Trademark：PRODRILL
• Origin：China
• HS Code：82071990
• Production Capacity：10000pec,Months

Basic Info.

Model NO. DHD 3.5-138 Machine Type Drilling Tool Processing Forging Color Red, Black, Yellow, White Bit Face Type Convex Face Application Quarrying,Mining Approx. Weight 16.0 Kgs Transport Package Wood Package Specification CE Trademark PRODRILL Origin China HS Code 82071990 Production Capacity 10000pec/Months

Product Description

Description:
DTH Drill Bits are produced from premium quality nickel-alloy steel for increased durability and wear characteristics. Specific heat treatment standards and special "stress relief" processes ensure consistent performance. 
DTH hammer bits are designed for maximum performance and hole cleaning ability and high penetration rate. 
Our bits are interchangeable with Atlas Copco's COP32 34 44 54 64 84, Ingersoll-Rand 's DHD3.5,DHD3.5HD, DHD 340A , DHD350R, DHD 360, DHD380 QL40, QL50 , QL60, QL80.NUMA100, NUMA120, MISSION60,ects

 


Advantages:
Compared with the oversea brands, our advantages are bellowing:
a. Our products can match over 95% against the original products
b. Price are competitive against the famous brands and best quality against the small factory
 
About Us:
1.    Our factory has been specialized in manufacturing drilling tools and spare parts for over 10 years.
2.    We have advanced technology and equipment.
3.    Our technician has more than 13 year's professional working experience.
4.    Rock drilling tools are exported throughout the world. Main market: Norway, Turkey, USA, Canada, Australia, Brazil, Uruguay, Iran, Philippines, Thailand, India, etc.
 
1. Face convex type: This kind of drill bit is divided into two types, single boss and double boss end face, the latter is mainly used for drill bit with larger diameter. The end face convex type DTH drill bit can maintain a high rock drilling rate when drilling hard and hard abrasive rock, but the straightness of the drilling hole is poor, and it is not suitable for rock drilling with high blast hole flatness. engineering.
2, end face flat type: This shape of the drill bit is more durable, suitable for drilling hard and extremely hard rock, but also suitable for drilling medium and hard rock and soft rock with low flatness.
3. Concave face type: This shape has a conical concave part on the end face of the bit. It is a bit of nucleation during the rock drilling process to maintain the centering performance of the drill bit. The drill hole has a good straight line. Degree, this drill bit has good drainage effect and fast drilling speed. It is a dTH drill bit that is used more on the market.
4. End face deep concave center type: The drill bit of this shape is evolved from the same type of ball tooth bit, and the center end of the end face of the drill bit has a deep concave central portion. It is used for nucleation during rock drilling and ensures the straightness of the blasthole when drilling deep holes. It is only suitable for drilling soft rock and medium hard rock.