Well Drilling Rods Diameter 3 1 /2 Inch 89mm DTH Drill Pipe Product description:DTH drill tubes are used for connecting DTH hammer and DTH button
bits; they are made from seamless tubes. Tubes play a significant
role in all DTH drilling, regardless of application, rock type,
hole depth or drill rig. The key features of a high quality DTH
tube are durability, accuracy and manageability. According to
different application, different diameters of drill tubes are
needed, basically, smaller DTH hammers need smaller DTH drill
tubes, vice avers. Usually we are offering 50mm, 60mm, 76mm, 89mm,
etc. ALL DTH drill tubes are friction welded, and usually the
threads are standard API connections,like23/8" API REG thread, 3
1/2" API REG thread or API IF thread, etc. According to customers
request, from 1000mm to 5000mm length of tubes are available.Specification:Diameter: 76mm, 89mm, 102mm, 114mm, 127mm, 140mmLength: 1000mm, 1500mm, 2000mm, 3000mm, 5000mm, 6000mm;Features: 1. In-house heat treatment ensures optimum surface hardness and
case depth 2. R780 Steel -high standard 3. Long Life Thread Connection 4. Reliable and wear-resistant
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