Specifications

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Standard DTH Drill Pipe Specifications (117 models)
North Star Part Number Diameter (mm) Diameter (in) Wall (mm) Wall (in) Length (mm) Length (ft) Box Thread Pin Thread Wrench Flat (mm) Wrench Flat (in) Weight (kg) Weight (lb)
DR030003A1F-067 76 3.00 4.0 0.157 1000 3.28 2 3/8” API 2 3/8” API A/F65 2.50 12 26
DR030003C1F-072 76 3.00 6.3 0.248 1000 3.28 2 3/8” API 2 3/8” API A/F65 2.50 17 37
DR030003G1F-099 76 3.00 8.8 0.346 1000 3.28 2 3/8” API 2 3/8” API A/F65 2.50 17 37
DR030005A1F-065 76 3.00 4.0 0.157 1500 4.92 RD50-6 RD50-6 A/F65 2.50 16 35
DR030005A1F-068 76 3.00 4.0 0.157 1500 4.92 2 3/8” API 2 3/8” API A/F65 2.50 16 35
DR030005C1F-073 76 3.00 6.3 0.248 1500 4.92 2 3/8” API 2 3/8” API A/F65 2.50 23 51
DR030005G1F-100 76 3.00 8.8 0.346 1500 4.92 2 3/8” API 2 3/8” API A/F65 2.50 24 53
DR030006G1F-098 76 3.00 8.8 0.346 1800 5.91 2 3/8” API 2 3/8” API A/F65 2.50 28 62
DR030007A1F-069 76 3.00 4.0 0.157 2000 6.56 2 3/8” API 2 3/8” API A/F65 2.50 19 42
DR030007C1F-074 76 3.00 6.3 0.248 2000 6.56 2 3/8” API 2 3/8” API A/F65 2.50 28 62
DR030007G1F-101 76 3.00 8.8 0.346 2000 6.56 2 3/8” API 2 3/8” API A/F65 2.50 32 71
DR030007G1F-102 76 3.00 8.8 0.346 2000 6.56 2 3/8” API 2 3/8” API A/F65 2.50 32 71
DR030010A1F-066 76 3.00 4.0 0.157 3000 9.84 RD50-6 RD50-6 A/F65 2.50 24 53
DR030010C1F-071 76 3.00 6.3 0.248 3000 9.84 RD50-6 RD50-6 A/F65 2.50 39 86
DR030010C1F-075 76 3.00 6.3 0.248 3000 9.84 2 3/8” API 2 3/8” API A/F65 2.50 39 86
DR030010A1F-112 76 3.00 4.0 0.157 3000 9.84 2 3/8” API 2 3/8” API A/F65 2.50 25 55
DR030010A1F-113 76 3.00 4.0 0.157 3000 9.84 2 3/8” API 2 3/8” API A/F65 2.50 25 55
DR030012C1F-097 76 3.00 6.3 0.248 3720 12.20 2 3/8” API 2 3/8” API A/F65 2.50 44 97
DR030013C1F-076 76 3.00 6.3 0.248 4000 13.12 2 3/8” API 2 3/8” API A/F65 2.50 49 108
DR030013A1F-080 76 3.00 4.0 0.157 4000 13.12 2 3/8” API 2 3/8” API A/F65 2.50 31 68
DR030015C1F-077 76 3.00 6.3 0.248 4500 14.76 2 3/8” API 2 3/8” API A/F65 2.50 52 115
DR030016C1F-083 76 3.00 6.3 0.248 5000 16.40 2 3/8” API 2 3/8” API A/F65 2.50 61 134
DR030020C1F-078 76 3.00 6.3 0.248 6000 19.69 2 3/8” API 2 3/8” API A/F65 2.50 72 159
DR030020C1F-108 76 3.00 6.3 0.248 6000 19.69 2 3/8” API 2 3/8” API A/F65 2.50 70 154
DR035003A1F-126 89 3.50 4.0 0.157 1000 3.28 2 3/8” API 2 3/8” API A/F65 2.50 13 29
DR035003C1F-136 89 3.50 6.3 0.248 1000 3.28 2 3/8” API 2 3/8” API A/F65 2.50 17 37
DR035003C1F-142 89 3.50 6.3 0.248 1000 3.28 2 3/8” IF 2 3/8” IF A/F65 2.50 17 37
DR035005A1F-127 89 3.50 4.0 0.157 1500 4.92 2 3/8” API 2 3/8” API A/F65 2.50 18 40
DR035005A1F-132 89 3.50 4.0 0.157 1500 4.92 2 3/8” IF 2 3/8” IF A/F65 2.50 18 40
DR035005C1F-137 89 3.50 6.3 0.248 1500 4.92 2 3/8” API 2 3/8” API A/F65 2.50 24 53
DR035005C1F-143 89 3.50 6.3 0.248 1500 4.92 2 3/8” IF 2 3/8” IF A/F65 2.50 24 53
DR035006C1F-155 89 3.50 6.3 0.248 1700 5.58 2 3/8” API 2 3/8” API A/F65 2.50 28 62
DR035006A1F-128 89 3.50 4.0 0.157 1800 5.91 2 3/8” API 2 3/8” API A/F65 2.50 20 44
DR035006C1F-146 89 3.50 6.3 0.248 1800 5.91 2 3/8” API 2 3/8” API A/F65 2.50 29 64
DR035006G1F-180 89 3.50 8.8 0.346 1800 5.91 2 3/8” API 2 3/8” API A/F65 2.50 33 73
DR035006G1F-185 89 3.50 8.8 0.346 1950 6.40 2 3/8” API 2 3/8” API A/F65 2.50 34 75
DR035007A1F-129 89 3.50 4.0 0.157 2000 6.56 2 3/8” API 2 3/8” API A/F65 2.50 22 49
DR035007A1F-133 89 3.50 4.0 0.157 2000 6.56 2 3/8” IF 2 3/8” IF A/F65 2.50 22 49
DR035007C1F-138 89 3.50 6.3 0.248 2000 6.56 2 3/8” API 2 3/8” API A/F65 2.50 30 66
DR035007C1F-144 89 3.50 6.3 0.248 2000 6.56 2 3/8” IF 2 3/8” IF A/F65 2.50 30 66
DR035007G1F-172 89 3.50 8.8 0.346 2000 6.56 2 3/8” API 2 3/8” API A/F65 2.50 38 84
DR035007C1F-154 89 3.50 6.3 0.248 2100 6.89 2 3/8” API 2 3/8” API A/F65 2.50 31 68
DR035010A1F-130 89 3.50 4.0 0.157 3000 9.84 2 3/8” API 2 3/8” API A/F65 2.50 28 62
DR035010A1F-134 89 3.50 4.0 0.157 3000 9.84 2 3/8” IF 2 3/8” IF A/F65 2.50 28 62
DR035010C1F-135 89 3.50 6.3 0.248 3000 9.84 RD70-4 RD70-4 A/F65 2.50 43 95
DR035010C1F-139 89 3.50 6.3 0.248 3000 9.84 2 3/8” API 2 3/8” API A/F65 2.50 43 95
DR035010C1F-145 89 3.50 6.3 0.248 3000 9.84 2 3/8” IF 2 3/8” IF A/F65 2.50 43 95
DR035010G1F-159 89 3.50 8.8 0.346 3000 9.84 2 3/8” API 2 3/8” API A/F65 2.50 52 115
DR035010C1F-181 89 3.50 6.3 0.248 3000 9.84 2 3/8” IF 2 3/8” IF A/F65 2.50 43 95
DR035010A1F-210 89 3.50 4.0 0.157 3000 9.84 2 3/8” API 2 3/8” API A/F65 2.50 30 66
DR035013C1F-153 89 3.50 6.3 0.248 4000 13.12 2 3/8” API 2 3/8” API A/F65 2.50 56 123
DR035013A1F-166 89 3.50 4.0 0.157 4000 13.12 2 3/8” API 2 3/8” API A/F65 2.50 39 86
DR035015C1F-140 89 3.50 6.3 0.248 4500 14.76 2 3/8” API 2 3/8” API A/F65 2.50 74 163
DR035015A1F-187 89 3.50 4.0 0.157 4500 14.76 2 3/8” API 2 3/8” API A/F65 2.50 37 82
DR035016C1F-151 89 3.50 6.3 0.248 5000 16.40 2 3/8” API 2 3/8” API A/F65 2.50 69 152
DR035020C1F-141 89 3.50 6.3 0.248 6000 19.69 2 3/8” API 2 3/8” API A/F65 2.50 81 179
DR035020G1F-182 89 3.50 8.8 0.346 6000 19.69 2 3/8” API 2 3/8” API A/F65 2.50 99 218
DR040003G1F-248 102 4.00 8.8 0.346 1000 3.28 2 3/8” IF 2 3/8” IF A/F75 3.00 28 61
DR040006C1F-255 102 4.00 6.3 0.248 1700 5.58 2 3/8” IF 2 3/8” IF A/F75 3.00 36 79
DR040010C1F-220 102 4.00 6.3 0.248 3000 9.84 2 7/8” API 2 7/8” API A/F75 3.00 55 121
DR040010G1F-244 102 4.00 8.8 0.346 3000 9.84 2 3/8” API 2 3/8” API A/F75 3.00 94 206
DR040010G1F-249 102 4.00 8.8 0.346 3000 9.84 2 3/8” IF 2 3/8” IF A/F75 3.00 94 206
DR040013C1F-221 102 4.00 6.3 0.248 4000 13.12 2 7/8” API 2 7/8” API A/F75 3.00 70 154
DR040013C1F-228 102 4.00 6.3 0.248 4000 13.12 3 1/2” API 3 1/2” API A/F75 3.00 70 154
DR040016C1F-213 102 4.00 6.3 0.248 5000 16.40 3 1/2” API 3 1/2” API A/F65 3.00 85 187
DR040016C1F-217 102 4.00 6.3 0.248 5000 16.40 2 7/8” API 2 7/8” API A/F75 3.00 85 187
DR040020C1F-222 102 4.00 6.3 0.248 6000 19.69 2 7/8” API 2 7/8” API A/F75 3.00 100 220
DR040020C1F-246 102 4.00 6.3 0.248 6000 19.69 3 1/2” API 3 1/2” API A/F75 3.00 100 220
DR040020C1F-263 102 4.00 6.3 0.248 6000 19.69 2 7/8” IF 2 7/8” IF A/F75 3.00 100 220
DR045004J1F-325 114 4.50 12.7 0.500 1219 4.00 3 1/2” API 3 1/2” API A/F75 3.00 48 105
DR045004J1F-331 114 4.50 12.7 0.500 1219 4.00 3 1/2” API 3” BECO A/F75 3.00 48 105
DR045007J1F-326 114 4.50 12.7 0.500 2133 7.00 3 1/2” API 3 1/2” API A/F75 3.00 61 135
DR045020K1F-350 114 4.50 17.0 0.669 6000 19.69 3” BECO 3” BECO A/F90 3.50 266 585
DR045003C1F-269 114 4.50 6.3 0.248 1000 3.28 3 1/2” API 3 1/2” API A/F95 3.75 26 57
DR045003G1F-278 114 4.50 8.8 0.346 1000 3.28 3 1/2” API 3 1/2” API A/F95 3.75 31 68
DR045005C1F-268 114 4.50 6.3 0.248 1500 4.92 2 3/8” IF 2 7/8” IF A/F95 3.75 35 77
DR045005C1F-270 114 4.50 6.3 0.248 1500 4.92 3 1/2” API 3 1/2” API A/F95 3.75 35 77
DR045005G1F-279 114 4.50 8.8 0.346 1500 4.92 3 1/2” API 3 1/2” API A/F95 3.75 42 93
DR045005C1F-355 114 4.50 6.3 0.248 1500 4.92 2 3/8” API 2 3/8” API A/F95 3.75 35 77
DR045007C1F-271 114 4.50 6.3 0.248 2000 6.56 3 1/2” API 3 1/2” API A/F95 3.75 43 95
DR045007C1F-275 114 4.50 6.3 0.248 2000 6.56 3 1/2” IF 3 1/2” IF A/F95 3.75 43 95
DR045007G1F-280 114 4.50 8.8 0.346 2000 6.56 3 1/2” API 3 1/2” API A/F95 3.75 54 119
DR045010C1F-272 114 4.50 6.3 0.248 3000 9.84 3 1/2” API 3 1/2” API A/F95 3.75 60 132
DR045010C1F-276 114 4.50 6.3 0.248 3000 9.84 3 1/2” IF 3 1/2” IF A/F95 3.75 60 132
DR045010G1F-281 114 4.50 8.8 0.346 3000 9.84 3 1/2” API 3 1/2” API A/F95 3.75 77 170
DR045013G1F-288 114 4.50 8.8 0.346 4000 13.12 3 1/2” API 3 1/2” API A/F95 3.75 100 220
DR045013C1F-304 114 4.50 6.3 0.248 4000 13.12 3 1/2” API 3 1/2” API A/F95 3.75 76 168
DR045015C1F-273 114 4.50 6.3 0.248 4500 14.76 3 1/2” API 3 1/2” API A/F95 3.75 96 211
DR045015G1F-282 114 4.50 8.8 0.346 4500 14.76 3 1/2” API 3 1/2” API A/F95 3.75 111 245
DR045016C1F-287 114 4.50 6.3 0.248 5000 16.40 3 1/2” API 3 1/2” API A/F95 3.75 93 205
DR045016C1F-303 114 4.50 6.3 0.248 5000 16.40 3 1/2” IF 3 1/2” IF A/F95 3.75 94 207
DR045016G1F-310 114 4.50 8.8 0.346 5000 16.40 3 1/2” API 3 1/2” API A/F95 3.75 122 269
DR045020C1F-274 114 4.50 6.3 0.248 6000 19.69 3 1/2” API 3 1/2” API A/F95 3.75 110 243
DR045020G1F-283 114 4.50 8.8 0.346 6000 19.69 3 1/2” API 3 1/2” API A/F95 3.75 136 300
DR045020J1F-314 114 4.50 12.7 0.500 6000 19.69 3 1/2” API 3 1/2” API A/F95 3.75 200 440
DR045020G1F-323 114 4.50 8.8 0.346 6000 19.69 2 7/8” API 2 7/8” API A/F95 3.75 145 320
DR045020G1F-336 114 4.50 8.8 0.346 6000 19.69 NC35 NC35 A/F95 3.75 145 320
DR050007G1F-380 127 5.00 8.8 0.346 2000 6.56 3 1/2” API 3 1/2” API A/F95 3.75 64 141
DR050007C1F-382 127 5.00 6.3 0.248 2000 6.56 3 1/2” API 3 1/2” API A/F95 3.75 52 115
DR050010C1F-378 127 5.00 6.3 0.248 3000 9.84 3 1/2” API 3 1/2” API A/F95 3.75 61 134
DR050010G1F-381 127 5.00 8.8 0.346 3000 9.84 3 1/2” API 3 1/2” API A/F95 3.75 90 198
DR050020C1F-379 127 5.00 6.3 0.248 6000 19.69 3 1/2” API 3 1/2” API A/F95 3.75 127 280
DR055003G1F-427 140 5.50 8.8 0.346 1000 3.28 4 1/2” API 4 1/2” API A/F120 4.75 45 99
DR055003J1F-451 140 5.50 12.7 0.500 1000 3.28 4 1/2” API 4 1/2” API A/F120 4.75 57 125
DR055005G1F-428 140 5.50 8.8 0.346 1500 4.92 4 1/2” API 4 1/2” API A/F120 4.75 48 106
DR055005G1F-432 140 5.50 8.8 0.346 1500 4.92 3 1/2” API 3 1/2” API A/F120 4.75 48 106
DR055005C1F-426 140 5.50 6.3 0.248 1500 4.92 3 1/2” API 3 1/2” API A/F120 4.75 43 95
DR055005G1F-440 140 5.50 8.8 0.346 1524 5.00 3 1/2” IF 3 1/2” IF A/F120 4.75 48 106
DR055007G1F-429 140 5.50 8.8 0.346 2000 6.56 4 1/2” API 4 1/2” API A/F120 4.75 76 168
DR055007G1F-433 140 5.50 8.8 0.346 2000 6.56 3 1/2” API 3 1/2” API A/F120 4.75 76 168
DR055007J1F-456 140 5.50 12.7 0.500 2000 6.56 4 1/2” API 4 1/2” API A/F120 4.75 114 250
DR055010G1F-430 140 5.50 8.8 0.346 3000 9.84 4 1/2” API 4 1/2” API A/F120 4.75 104 229
DR055010G1F-434 140 5.50 8.8 0.346 3000 9.84 3 1/2” API 3 1/2” API A/F120 4.75 104 229
DR055013G1F-437 140 5.50 8.8 0.346 4000 13.12 3 1/2” API 3 1/2” API A/F120 4.75 131 289
DR055016G1F-435 140 5.50 8.8 0.346 5000 16.40 4 1/2” API 4 1/2” API A/F120 4.75 160 353
DR055020G1F-431 140 5.50 8.8 0.346 6000 19.69 4 1/2” API 4 1/2” API A/F120 4.75 187 412
DR055020G1F-438 140 5.50 8.8 0.346 6000 19.69 3 1/2” API 3 1/2” API A/F120 4.75 187 412

Additional diameters, wall thicknesses, lengths, wrenching configurations and thread types are available upon request. Source: North Star Mining & Construction Brochure, Standard DTH Drill Pipes, printed page 7.

Standard Rotary Drill Pipes ＋
DIAMETER INCHES/MM WALL THICKNESS LENGTH FEET LENGTH MM RECOMMENDED SIZE/TYPE THREAD MID-BODY TUBE STEEL GRADES AVAILABLE STANDARD TOOL JOINT STEEL GRADE
4.500″/114MM .500″/.750″/1.000″ 7′ THRU 40′ 2,134MM THRU 12,192MM 3.500″ DIBH/3.000″ BECO A106B/ST52/4140 4145H ALLOY
5.000″/127MM .500″/.750″/1.000″ 7′ THRU 40′ 2,134MM THRU 12,192MM 3.500″ BECO A106B/ST52/4140 4145H ALLOY
5.500″/140MM .500″/.750″/1.000″ 7′ THRU 40′ 2,134MM THRU 12,192MM 3.500″ BECO A106B/ST52/4140 4145H ALLOY
6.000″/152MM .500″/.750″/1.000″ 7′ THRU 40′ 2,134MM THRU 12,192MM 4.000″ BECO/4.500″ BECO A106B/ST52/4140 4145H ALLOY
6.250″/159MM .500″/.750″/1.000″ 7′ THRU 40′ 2,134MM THRU 12,192MM 4.000″ BECO/4.500″ BECO A106B/ST52/4140 4145H ALLOY
6.500″/165MM .500″/.750″/1.000″ 7′ THRU 40′ 2,134MM THRU 12,192MM 4.000″ BECO/4.500″ BECO A106B/ST52/4140 4145H ALLOY
6.625″/168MM .750″/1.000″ 7′ THRU 40′ 2,134MM THRU 12,192MM 4.000″ BECO/4.500″ BECO A106B/ST52/4140 4145H ALLOY
7.000″/178MM .750″/1.000″/1.250″ 7′ THRU 40′ 2,134MM THRU 12,192MM 4.500″ BECO A106B/ST52/4140 4145H ALLOY
7.625″/194MM .875″/1.000″/1.250″ 7′ THRU 40′ 2,134MM THRU 12,192MM 5.250″/6.000″ BECO A106B/ST52/4140 4145H ALLOY
8.000″/203MM 1.000″/1.250″/1.500″ 7′ THRU 40′ 2,134MM THRU 12,192MM 5.250″/6.000″ BECO A106B/ST52/4140 4145H ALLOY
8.625″/219MM 1.000″/1.250″/1.500″ 7′ THRU 40′ 2,134MM THRU 12,192MM 6.000″ BECO A106B/ST52/4140 4145H ALLOY
9.250″/235MM 1.000″/1.250″/1.500″ 7′ THRU 40′ 2,134MM THRU 12,192MM 6.000″ BECO/7.000″ BECO A106B/ST52/4140 4145H ALLOY
9.625″/244MM 1.000″/1.250″/1.500″ 7′ THRU 40′ 2,134MM THRU 12,192MM 6.000″ BECO/7.000″ BECO A106B/ST52/4140 4145H ALLOY
10.250″/260MM 1.000″/1.250″/1.500″ 7′ THRU 40′ 2,134MM THRU 12,192MM 7.000″ BECO A106B/ST52/4140 4145H ALLOY
10.750″/273MM 1.000″/1.250″/1.500″ 7′ THRU 40′ 2,134MM THRU 12,192MM 8.000″ BECO A106B/ST52/4140 4145H ALLOY
13.375″/340MM 1.000″/1.500″/2.000″ 10′ THRU 35′ 2,540MM THRU 10,668MM 10.000″ BECO A106B/ST52/4140 4145H ALLOY

ADDITIONAL DIAMETERS, WALL THICKNESSES AND THREAD TYPES ARE AVAILABLE UPON REQUEST

Deck Bushing Specifications ＋
DRILL PIPE OD (IN) DRILL PIPE OD (MM) DECK BUSHING OD (IN) DECK BUSHING OD (MM) FLANGE DIAMETER IN/ TYPE FLANGE DIAMETER MM/ TYPE
4.000 102 10 254 12” w/ 2 x Slots 305mm w/ 2 x Slots
4.500 114 10 254 12” w/ 2 x Slots 305mm w/ 2 x Slots
4.500 114 10 254 14” w/ 1 x Flat 356mm w/ 1 x Flat
5.000 127 10 254 12” w/ 2 x Slots 305mm w/ 2 x Slots
5.000 127 10 254 14” w/ 1 x Flat 356mm w/ 1 x Flat
5.500 140 10-13 254-330 12-16” w/ 2 x Slots 305-406mm w/ 2 x Slots
6.000 152 10 254 14” w/ 1 x Flat 356mm w/ 1 x Flat
6.250 159 10-13 254-330 12-16” w/ 2 x Slots 305-406mm w/ 2 x Slots
6.500 165 10-13 254-330 12-16” w/ 2 x Slots 305-406mm w/ 2 x Slots
7.000 178 11.25-13 286-330 12-16” w/ 1 or 2 x Slots/ 1 x Flat 305-406mm w/ 1 or 2 x Slots or 1 x Flat
7.625 194 11.25-13 286-330 12-16” w/ 1 or 2 x Slots/ 1 x Flat 305-406mm w/ 1 or 2 x Slots or 1 x Flat
8.625 219 11.25-16 286-406 12-19” w/ 1 or 2 x Slots/ 1 x Flat 305-482mm w/ 1 or 2 x Slots or 1 x Flat
9.250 235 13-16 330-406 16-19” w/ Slots or Flat 406-482mm w/ Slots or Flat
10.750 273 15-16 381-406 15.750-17” w/ Flat only 400-432mm w/ Flat only
Pin-Box Casing ＋
CASING OD (MM) CASING ID (MM) PIN JOINT ID (MM) LENGTH (MM, S/S) CONNECTION TYPE
133 115 106 1500 Pin-Box Left Hand
133 115 106 2000 Pin-Box Left Hand
146 128 122.5 1500 Pin-Box Left Hand
Reverse Circulation Drill Pipe ＋

REVERSE CIRCULATION THREAD CSR1

REVERSE CIRCULATION THREAD DIAMETER LENGTH PART NUMBER
REVERSE CIRCULATION DRILL PIPE CSR1 6M 4” 20’ RCD40060C1A-01
REVERSE CIRCULATION DRILL PIPE CSR1 3M 4” 10’ RCD40030C1A-01
REVERSE CIRCULATION DRILL PIPE CSR1 6M 4 1/2” 20’ RCD41260C1A-01
REVERSE CIRCULATION DRILL PIPE CSR1 3M 4 1/2” 10’ RCD41230C1A-01

REVERSE CIRCULATION THREAD MATRIX

REVERSE CIRCULATION THREAD DIAMETER LENGTH PART NUMBER
REVERSE CIRCULATION DRILL PIPE MATRIX 6M 4” 20’ RCD40060MAA-01
REVERSE CIRCULATION DRILL PIPE MATRIX 3M 4” 10’ RCD40030MAA-01
REVERSE CIRCULATION DRILL PIPE MATRIX 6M 4 1/2” 20’ RCD41260MAA-01
REVERSE CIRCULATION DRILL PIPE MATRIX 3M 4 1/2” 10’ RCD41230MAA-01

REVERSE CIRCULATION THREAD METZKE

REVERSE CIRCULATION THREAD DIAMETER LENGTH PART NUMBER
REVERSE CIRCULATION DRILL PIPE METZKE 6M 4” 20’ RCD40060MEA-01
REVERSE CIRCULATION DRILL PIPE METZKE 3M 4” 10’ RCD40030MEA-01
REVERSE CIRCULATION DRILL PIPE METZKE 6M 4 1/2” 20’ RCD41260MEA-01
REVERSE CIRCULATION DRILL PIPE METZKE 3M 4 1/2” 10’ RCD41230MEA-01

REVERSE CIRCULATION THREAD REMET

REVERSE CIRCULATION THREAD DIAMETER LENGTH PART NUMBER
REVERSE CIRCULATION DRILL PIPE REMET 6M 4” 20’ RCD40060REA-01
REVERSE CIRCULATION DRILL PIPE REMET 3M 4” 10’ RCD40030REA-01
REVERSE CIRCULATION DRILL PIPE REMET 6M 4 1/2” 20’ RCD41260REA-01
REVERSE CIRCULATION DRILL PIPE REMET 3M 4 1/2” 10’ RCD41230REA-01
Reverse Circulation Inner Tubes ＋

REVERSE CIRCULATION INNER TUBE THREAD CSR1

REVERSE CIRCULATION INNER TUBE THREAD DIAMETER LENGTH PART NUMBER
REVERSE CIRCULATION INNER TUBE CSR1 6M 4” 20’ RCD40060C1A-T1
REVERSE CIRCULATION INNER TUBE CSR1 3M 4” 10’ RCD40030C1A-T1
REVERSE CIRCULATION INNER TUBE CSR1 6M 4 1/2” 20’ RCD41260C1A-T1
REVERSE CIRCULATION INNER TUBE CSR1 3M 4 1/2” 10’ RCD41230C1A-T1

REVERSE CIRCULATION INNER TUBE THREAD MATRIX

REVERSE CIRCULATION INNER TUBE THREAD DIAMETER LENGTH PART NUMBER
REVERSE CIRCULATION INNER TUBE MATRIX 6M 4” 20’ RCD40060MAA-T1
REVERSE CIRCULATION INNER TUBE MATRIX 3M 4” 10’ RCD40030MAA-T1
REVERSE CIRCULATION INNER TUBE MATRIX 6M 4 1/2” 20’ RCD41260MAA-T1
REVERSE CIRCULATION INNER TUBE MATRIX 3M 4 1/2” 10’ RCD41230MAA-T1

REVERSE CIRCULATION INNER TUBE THREAD METZKE

REVERSE CIRCULATION INNER TUBE THREAD DIAMETER LENGTH PART NUMBER
REVERSE CIRCULATION INNER TUBE METZKE 6M 4” 20’ RCD40060MEA-T1
REVERSE CIRCULATION INNER TUBE METZKE 3M 4” 10’ RCD40030MEA-T1
REVERSE CIRCULATION INNER TUBE METZKE 6M 4 1/2” 20’ RCD41260MEA-T1
REVERSE CIRCULATION INNER TUBE METZKE 3M 4 1/2” 10’ RCD41230MEA-T1

REVERSE CIRCULATION INNER TUBE THREAD REMET

REVERSE CIRCULATION INNER TUBE THREAD DIAMETER LENGTH PART NUMBER
REVERSE CIRCULATION INNER TUBE REMET 6M 4” 20’ RCD40060REA-T1
REVERSE CIRCULATION INNER TUBE REMET 3M 4” 10’ RCD40030REA-T1
REVERSE CIRCULATION INNER TUBE REMET 6M 4 1/2” 20’ RCD41260REA-T1
REVERSE CIRCULATION INNER TUBE REMET 3M 4 1/2” 10’ RCD41230REA-T1
Raise Boring Series ＋
SPECS THREAD MATERIAL LENGTH (mm)
176 6 5/8 REG 4145H/4330V 1000
182 6 5/8 REG 4145H/4330V 1000
203 6 3/4 DI22 4145H/4330V 1000-1500
254 8 1/4 DI22 4145H/4330V 1000-1500
286 9 1/4 DI22 4145H/4330V 1000-1500
MINING & CONSTRUCTION DRILLING TOOLS

Drill Pipe & Drilling Tools Built for Demanding Ground Conditions

North Star provides mining drill rods, rotary drill pipe, DTH drill rods & drill pipes, adaptor subs, stabilizers, deck bushings and casing for demanding drilling applications. Our drilling tools are configured around rig requirements, formation conditions and connection specifications — from rotary drilling and down-the-hole drilling to casing support.

Core terms: mining drill rods · mining drill pipe · rotary drill rods · rotary drill pipe · DTH drill rods · DTH drill pipes · drilling tools · drill pipe manufacturer · drill pipe supplier · drill pipe manufacturer China

HOW TO CHOOSE

Match the Drill Pipe to the Drilling Method

The right drill rod or drill pipe depends on the drilling method, formation, rig and connection. Use these checkpoints as a practical starting point.

Rotary Drilling

For rotary drill rods and drill pipe, consider formation abrasiveness, mid-body wear, tube steel grade, diameter, wall thickness, thread configuration and required service life.

Down-the-Hole (DTH) Drilling

For DTH drill rods & drill pipes, confirm the DTH rig, rod dimensions, connection type and supporting DTH adaptors, stabilizers and deck bushings.

Casing

For casing applications, define borehole requirements, casing dimensions and the supporting drilling system before final configuration.
SPECIFICATIONS & CUSTOMIZATION

Configured Around Your Rig

North Star can configure drilling products around your drilling equipment and project requirements. For quotations, provide the information that defines the connection and operating conditions.

Rig Make & Model

Identify the drilling rig and model so the drill rod, drill pipe or adaptor configuration can be matched correctly.

Dimensions

Provide drill rod OD, length and wall thickness. For adaptors, include outside diameter and shoulder-to-shoulder length.

Thread Connection

Specify pin and box thread size and type, including API Reg, API IF or BECO where applicable.

Wrenching & Hard Facing

Confirm wrenching dimensions and location, hard-facing requirements and any special requests.

Formation & Wear

Match tube or tool configuration to normal, hard or abrasive drilling conditions and the expected wear environment.

Custom Manufacturing

CNC machining and certified thread gages support accurate, application-specific configurations.
WHY NORTH STAR

A Drilling Tools Manufacturer Built Around the Application

North Star combines engineering, manufacturing and technical support to help customers match the right product to the right project and the right connection.

500+

Employees
Current company scale supported by the brand manual.

100,000 m²

Facility
Large-scale manufacturing base.

400,000+

Annual capacity

Brand figure for production capacity.

1998

Established
More than two decades of drilling tool manufacturing experience.
FAQ · MINING & CONSTRUCTION DRILLING

Common Questions About Mining Drill Rods & Drill Pipe

This section captures the product, specification and purchasing questions commonly used in search when evaluating mining and construction drilling tools.

What are mining drill rods used for?

Mining drill rods transmit rotation, torque and thrust between the drilling rig and the drilling tool. North Star supplies rotary drill rods, DTH drill rods and other drilling components for mining and construction applications.

What is the difference between a drill rod and drill pipe?

The terms can vary by drilling method and industry. For category searches, customers may use mining drill rods, mining drill pipe or drilling pipe. North Star provides both rotary drill rods / drill pipe and DTH drill rods & drill pipes.

How do I choose rotary drill rods?

Start with the rig make and model, rod OD, length, wall thickness, thread configuration and formation conditions. For hard and abrasive formations, alloy tube options can be considered where mid-body wear is a major concern.

What are DTH drill rods and drill pipes?

DTH drill rods and drill pipes are used in down-the-hole drilling systems. Selection should be based on the DTH rig, rod dimensions, connection configuration and the supporting DTH drilling tools.

What information is needed for a drill pipe quotation?

Provide the drill rig make and model, drill rod OD, length, wall thickness, pin and box thread size/type, wrenching configuration and any special requirements.

Where can I buy mining drill rods or drill pipe?

North Star supplies mining drill rods, rotary drill pipe, DTH drill rods & drill pipes and supporting drilling tools. Contact the team with your rig and application details for a configuration recommendation.
MINING & CONSTRUCTION DRILLING TOOLS

Need the Right Drill Pipe Configuration?

Tell us your rig make and model, drill rod or drill pipe dimensions, thread connection, formation and special requirements. Our team can help match the right drilling tools to your application.
Request a Quote

Getting quotes

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