TD40 DTH Hammer button bit is one of the series from Atlas, it is similar like DHD340 shank, this special design for customizing customers. 

STAROCKDRILL has this design and match for original hammers. We are selling more in Europe.

All our DTH drill bits are also CAD designed, CNC manufactured for perfect bits body, and multiple heat-treated to enhance hardness, 

surface-compressed for fatigue resistance, all thus to extend the product life for maximum wear and performance in the toughest of drilling conditions. 

Moreover, all these bits are also made from high quality alloy steels and fitted with premium quality tungsten carbide tips for superior penetration rate.

STAROCKDRILL commonly has three basic bits head designs: Flat Face, Convex and Concave. These are designed for specific applications for all rock types, 

hardness’s and conditions.

STAROCKDRILLS main goods are : DTH Hammers, DTH Bits, DTH Drill Rods, ODEX Casing system. Symmetric casing system, RC Hammers, RC Bits, RC Rods, 

Threaded Bits, Tapered Bits, Drill Rods, back hammers and sub adapters.

Advantages:

(1) Made from premium quality nickel-alloy steel 25SiMnCrNi2MoVA for increased durability and wear characteristics, 

and YK 05 tungsten carbide as same grade as internationally well-known brand (T6)

(2) Apply "hot (thermal) -insertion" processing procedure to insert the buttons as same as internationally well-known brand, 

(4) Entire CNC processing procedure ensure the quality consistency and reliable. 

(5) Military grade requirements of heat-treatment guarantee durability, Specific heat treatment standards and special “stress relief”

 processes ensure consistent performance. 

(6) Designed for maximum performance and hole cleaning ability and high penetration rate.

How to order:

DTH BITS: BIT SHANK + DIAMETER 

(We are customizing customer on bit face and button shape)