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	DTH Bit-DHD3.5-138DTH 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.
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	DTH Bit-DHD380-203DTH 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.
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	M40-115 DTH Hammer Bit1.Improved steel grade for better fatigue properties 
 2.Five basic front designs
 3.Designs for all rock types



