Rotary Drill Rods

North Star Rotary Drill Pipe is manufactured using the highest quality 4145 HT & Quenched alloy tool joints with options of HT & Quenched alloy or hot-rolled seamless carbon tube.

Mid-Body Tube options include:

4140 Alloy: This a alloy tube that is applied in hard abrasive formations as a solution to slow the mid-body wear that is common in these types of geological formations. The physical characteristics, yield, tensile and HRC hardness of this alloy tube deliver a more durable, wear-resistant mid-body tube than that of standard, hot-rolled, seamless carbon tube.

ST52: This mid-body tube is typically applied in less abrasive formations. This is a hot-rolled, seamless carbon tube.

View Specification Tables

Specifications

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Rotary Drill Pipe Offering

Diameter Wall ThicknessLengthRecommended ThreadTube Steel Grades
inmminmmftmm
51270.50012.725-307620-91443 1/2" BECOA106B
51270.75019.125-307620-91443 1/2" BECOA106B/4140 HT&Q
5 1/21400.50012.725-307620-91443 1/2" BECOA106B
5 1/21400.75019.125-307620-91443 1/2" BECOA106B/4140 HT&Q
61520.75019.125-307620-91444" BECOA106B/4140 HT&Q
6 1/41590.75019.125-307620-91444" BECOA106B/4140 HT&Q
6 1/41591.00025.425-307620-91444" BECOA106B/4140 HT&Q
6 1/21650.75019.125-307620-91444 1/2" BECOA106B/4140 HT&Q
6 1/21651.00025.425-307620-91444 1/2" BECOA106B/4140 HT&Q
6 5/81680.86221.925-307620-91444 1/2" BECOA106B/4140 HT&Q
71780.75019.125-407620-121924 1/2" BECOA106B/4140 HT&Q
71781.00025.425-407620-121925 1/4" BECOA106B/4140 HT&Q
7 5/81940.75019.125-457620-137165 1/4" BECOA106B/4140 HT&Q
7 5/81941.00025.425-457620-137165 1/4" BECOA106B/4140 HT&Q
8 5/82190.75019.125-457620-137166" BECOA106B/4140 HT&Q
8 5/82190.90623.025-457620-137166" BECOA106B/4140 HT&Q
8 5/82191.00025.425-457620-137166" BECOA106B/4140 HT&Q
9 1/42351.00025.425-457620-137166" BECOA106B/4140 HT&Q
9 1/42351,25031.825-457620-137166" BECOA106B/4140 HT&Q
9 1/42351.50038.125-457620-137166" BECOA106B/4140 HT&Q
10 3/42731.00025.427.50-458382-137168" BECOA106B/4140 HT&Q
10 3/42731.25031.827.50-458382-137168" BECOA106B/4140 HT&Q
10 3/42731.50038.127.50-458382-137168" BECOA106B/4140 HT&Q
Additional diameters, wall thicknesses and thread types are available upon request.

Click on Rig Type for detailed Drill Pipe options

DM45-50-DML DMH/DMM/DMM2 DMM3 Pit Viper 235
Pit Viper 271 Pit Viper 351

DM45/50/DML

Diameter (in)Diameter (mm)Wall (in)Wall (mm)Length (ft)Length (mm)Thread Options
5"127.750"1925' - 30'7620 - 91443 1/2" API - 3 1/2" BECO
5 1/2"140.750"1925' - 30'7621 - 91443 1/2" BECO
6"152.4.750"1925' - 30'7622 - 91444" BECO
6 1/4"159.750"1925' - 30'7623 - 91444" BECO
6 1/2"165.750"1925' - 30'7624 - 91444" BECO
7"178.750"1925' - 30'7625 - 91444 1/2" BECO - 5 1/4" BECO
Additional diameters, wall thicknesses, length, wrenching and thread types are available upon request.

DMH/DMM/DMM2

Diameter (in)Diameter (mm)Wall (in)Wall (mm)Length (ft)Length (mm)Thread Options
7178.750"1929 - 30.3 - 31.9 - 358839 - 9235 - 9723 - 106684 1/2" BECO
71781.000"25.430 - 30.3 - 31.9 - 358839 - 9235 - 9723 - 106684 1/2" BECO
7 5/8194.750"1932.9 - 35 - 4510028 - 10668 - 137165 1/4" BECO
7 5/81941.000"25.432.9 - 35 - 4510028 - 10668 - 137165 1/4" BECO
8 5/8219.906"2332.9 - 5010028 - 152406" BECO
8 5/82191.000"25.432.9 - 5010028 - 152406" BECO
10 3/42731.000"25.46.8320828" BECO
10 3/42731.000"25.43091448" BECO
10 3/42751.000"25.432.9100288" BECO
Additional diameters, wall thicknesses, length, wrenching and thread types are available upon request.

DMM3

Northstar Part NumberDiameter InchesDiameter MMWall InchesWall MMLength FeetLength MMThread Options
TBA7"1781.000"25.440121924 1/2" BECO
TBA7 5/81941.000"25.440121925 1/4" BECO
TBA8 5/8"2191.000"25.440121926" BECO
TBA10 3/4"2731.000"25.440121928" BECO
**Additional diameters, wall thicknesses, length, wrenching and thread types are available upon request.

Pit Viper 235

Northstar Part NumberDiameter InchesDiameter MMWall InchesWall MMLength FeetLength MMThread Options
TBA5"127.750"1935 - 407620 - 91443 1/2" BECO
TBA5 1/2"140.750"1935 - 407620 - 91443 1/2" BECO
TBA6 1/4"159.750"1935 - 407620 - 91444" BECO
TBA7"178.750"1935 - 407620 - 91444 1/2" BECO
TBA7"1781.000"25.435 - 407620 - 91444 1/2" BECO
TBA7 5/8"194.750"1935 - 4010668 - 121925 1/4" BECO
TBA7 5/8"1941.000"25.435 - 4010668 - 121925 1/4" BECO
**Additional diameters, wall thicknesses, length, wrenching and thread types are available upon request.

Pit Viper 271

Northstar Part NumberDiameter InchesDiameter MMWall InchesWall MMLength FeetLength MMThread Options
TBA5 1/2"140.750"192576204" FH
TBA7 5/8"194.750"198 -20 -25 -302438 - 6096 - 7620 - 91445 1/4" BECO
**Additional diameters, wall thicknesses, length, wrenching and thread types are available upon request.

Pit Viper 351

Northstar Part NumberDiameter InchesDiameter MMWall InchesWall MMLength FeetLength MMThread Options
TBA7 5/8"19425135106685 1/4" BECO
TBA8 5/8"21925135106686" BECO
TBA10 3/4"273125.435106688" BECO
**Additional diameters, wall thicknesses, length, wrenching and thread types are available upon request.
MD 6240/6250 MD 6290 MD 6420 MD 6540C
MD 6640

MD 6240/6250

Diameter (in)Diameter (mm)Wall (in)Wall (mm)Length (ft)Length (mm)Thread Options
51270.750 - 1.00019 - 25.420 - 356096 - 106683 1/2" BECO
5.51400.750 - 1.00019 - 25.420 - 356096 - 106683 1/2" BECO
6152.40.750 - 1.00019 - 25.420 - 356096 - 106684" BECO
6.51650.750 - 1.00019 - 25.420 - 356096 - 106684" BECO
71780.750 - 1.00019 - 25.420 - 356096 - 106684 1/2" BECO
7.6251940.750 - 1.00019 - 25.420 - 356096 - 106685 1/4" BECO
Additional diameters, wall thicknesses, length, wrenching and thread types are available upon request.
Bucyrus Erie/Reedrill Models Drill Pipe are available upon request.

MD 6290

Diameter InchesDiameter MM Wall InchesWall MMLength FeetLength MMThread Options
4.51140.750 - 1.00019 - 25.430 - 359144 - 106683 1/2" API - 3" BECO
51270.750 - 1.00019 - 25.420 - 359144 - 106683 1/2" BECO
5.51400.750 - 1.00019 - 25.420 - 359144 - 106683 1/2" BECO
6152.40.750 - 1.00019 - 25.420 - 359144 - 106684" BECO
6.51650.750 - 1.00019 - 25.420 - 359144 - 106684" BECO
71780.750 - 1.00019 - 25.420 - 359144 - 106684 1/2" BECO

MD 6420

Diameter InchesDiameter MM Wall InchesWall MMLength FeetLength MMThread Options
7.625194125.425 - 35 - 406096 - 10668 - 121925 1/4" BECO
8.625219125.425 - 35 - 406096 - 10668 - 121926" BECO

MD 6540C

Diameter InchesDiameter MMWall InchesWall MMLength FeetLength MMThread Options
7.625194125.430 - 459144 - 137165 1/4" BECO
8.625219125.430 - 459144 - 137166" BECO
9.25235125.430 - 459144 - 137166" BECO
10.75273125.430 - 459144 - 137168" BECO

MD 6640

Diameter InchesDiameter MMWall InchesWall MMLength FeetLength MMThread Options
9.25235125.430 - 359144 - 106686" BECO
10.75273125.430 - 359144 - 106688" BECO
13.375340125.430 - 359144 - 1066810" BECO
Additional diameters, wall thicknesses, length, wrenching and thread types are available upon request.
Bucyrus Erie/Reedrill Models Drill Pipe are available upon request.
250XPC 285XPC 320XPC 77XR

Rotary Drill Pipe Komatsu 250XPC

Diameter InchesDiameter MMWall InchesWall MMLength FeetLength MMThread Options
7178125.427' 6"83824 1/2" BECO
7178125.432' 6"99064 1/2" BECO
7.625194125.427' 6"83825 1/4" BECO
7.625194125.432' 6"99065 1/4" BECO
8.625219125.427' 6"83826" BECO
8.625219125.432' 6"99066" BECO
9.25235125.427' 6"83826" BECO
9.25235125.432' 6"99066" BECO
10.75273125.427' 6"83828" BECO
10.75273125.432' 6"99068" BECO

Rotary Drill Pipe Komatsu 285XPC

Diameter InchesDiameter MMWall InchesWall MMLength FeetLength MMThread Options
7178125.427' 6"83824 1/2" BECO
7178125.432' 6"99064 1/2" BECO
7.625194125.427' 6"83825 1/4" BECO
7.625194125.432' 6"99065 1/4" BECO
8.625219125.427' 6"83826" BECO
8.625219125.432' 6"99066" BECO
9.25235125.427' 6"83826" BECO
9.25235125.432' 6"99066" BECO
10.75273125.427' 6"83828" BECO
10.75273125.432' 6"99068" BECO

Rotary Drill Pipe Komatsu 320XPC

Diameter InchesDiameter MMWall InchesWall MMLength FeetLength MMThread Options
8.625219125.427' 6"83826" BECO
8.625219125.432' 6"99066" BECO
9.25235125.427' 6"83826" BECO
9.25235125.432' 6"99066" BECO
10.75273125.427' 6"83828" BECO
10.75273125.432' 6"99068" BECO
13.3753401.538.127' 6"838210" BECO
13.3753401.538.132' 6"990610" BECO

Rotary Drill Pipe Komatsu 77XR

Diameter InchesDiameter MMWall InchesWall MMLength FeetLength MMThread Options
6152.4125.432' 6"99064" BECO
6.5165125.432' 6"99064 1/2" BECO
7.625194125.432' 6"99065 1/4" BECO
8.625219125.432' 6"99066" BECO
D245S D245KS D25KS D45KS D50KS D55SP
D75KS D90KS DR440 DR460 461

Rotary Drill Pipe Sandvik D245S D245KS

Diameter InchesDiameter MMWall InchesWall MMLength FeetLength MMThread Options
51270.75193091443 1/2" BECO
5.51400.75193091443 1/2"BECO

Rotary Drill Pipe Sandvik D25KS

Diameter InchesDiameter MMWall InchesWall MMLength FeetLength MMThread Options
4.51140.75192576203 1/2" API
4.51140.75193091443 1/2" API
51270.75192576203 1/2" BECO
51270.75193091443 1/2" BECO

Rotary Drill Pipe Sandvik D45KS D50KS

Diameter InchesDiameter MMWall InchesWall MMLength FeetLength MMThread Options
4.51140.75192576203" BECO
4.51140.75193091443" BECO
51270.75192576203 1/2" BECO
51270.75193091443 1/2" BECO
5.51400.75192576203 1/2"BECO
5.51400.75193091443 1/2"BECO
61520.75192576204 1/2"BECO
61520.75193091444 1/2"BECO
6.51650.75192576204 1/2"BECO
6.51650.75193091444 1/2"BECO
6.6251680.75192576204 1/2"BECO
6.6251680.75193091444 1/2"BECO
71780.75192576204 1/2"BECO
71780.75193091444 1/2"BECO

Rotary Drill Pipe Sandvik D55SP

Diameter InchesDiameter MMWall InchesWall MMLength FeetLength MMThread Options
6.5165125.42576204 1/2"BECO
7178125.42576204 1/2"BECO
7.625194125.42576206" BECO

Rotary Drill Pipe Sandvik D75KS

Diameter InchesDiameter MMWall InchesWall MMLength FeetLength MMThread Options
7178125.435106684 1/2"BECO
7.625194125.435106686" BECO
8.625219125.435106686" BECO

Rotary Drill Pipe Sandvik D90KS

Diameter InchesDiameter MMWall InchesWall MMLength FeetLength MMThread Options
8.625219125.433100586" BECO
8.625219125.440121926" BECO
9.25235125.433100586" BECO
9.25235125.440121926" BECO
10.75273125.433100588" BECO
10.75273125.440121928" BECO

Rotary Drill Pipe Sandvik DR440

Diameter InchesDiameter MMWall InchesWall MMLength FeetLength MMThread Options
5.51400.75192576203 1/2"BECO
5.51400.75193091443 1/2"BECO
71780.75192576204 1/2"BECO
71780.75193091444 1/2"BECO
7178125.42576204 1/2"BECO
7178125.43091444 1/2"BECO

Rotary Drill Pipe Sandvik DR460 461

Diameter InchesDiameter MMWall InchesWall MMLength FeetLength MMThread Options
7.625194125.42576205 1/4" BECO
7.625194125.442128025 1/4" BECO
8.625219125.42576206" BECO
8.625219125.442128026" BECO
9.25235125.42576206" BECO
9.25235125.442128026" BECO

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