Drill Rod

Diameter Millimeter (Inch) Wall Thickness Millimeter (Inch) Thread Pin Thread Box Length Popular Application
MeterFeet
73 mm (2-7/8”) 8.8 mm (1 1/32”) 2-3/8 API REG 2-3/8 API REG 3, 3.6, 4.6, 6 10, 12, 15, 20 DTH
76 mm (3”) 6.35 mm (1/4”) 2-3/8 API REG 2-3/8 API REG 3, 3.6, 4.6, 6 10, 12, 15, 20 DTH
89 mm (3-1/2”) 6.35 mm (1/4”) 2-3/8 API REG & 2-3/8 API IF 2-3/8 API REG & 2-3/8 API IF 3, 3.6, 4.6, 6 10, 12, 15, 20 DTH
89 mm (3-1/2”) 8.8 mm (1 1/32”) 2-3/8 API REG & 2-3/8 API IF 2-3/8 API REG & 2-3/8 API IF 3, 3.6, 4.6, 6 10, 12, 15, 20 Rotary
102 mm (4”) 6.35 mm (1/4”) 2-3/8 API REG & 2-3/8 API IF 2-3/8 API REG & 2-3/8 API IF 3, 3.6, 4.6, 6 10, 12, 15, 20 DTH / Rotary
102 mm (4”) 8.8 mm (1 1/32”) 2-3/8 API REG & 2-3/8 API IF 2-3/8 API REG & 2-3/8 API IF 3, 3.6, 4.6, 6 10, 12, 15, 20 Rotary
114 mm (4-1/2”) 6.35 mm (1/4”) 3-1/2” API REG & 3-1/2” BECO 3-1/2” API REG & 3-1/2” BECO 3, 3.6, 4.6, 6, 9.1 10, 12, 15, 20,30 DTH
114 mm (4-1/2”) 8.8 mm (1 1/32”) 3-1/2” API REG & 3-1/2” BECO 3-1/2” API REG & 3-1/2” BECO 3, 3.6, 4.6, 6, 9.1 10, 12, 15, 20,30 DTH / Rotary
114 mm (4-1/2”) 12.7 mm (1/2”) 3-1/2” API REG & 3-1/2” BECO 3-1/2” API REG & 3-1/2” BECO 3, 3.6, 4.6, 6, 9.1 10, 12, 15, 20,30 Rotary
127 mm (5”) 9.53 mm (3/8”) 3-1/2” API REG & 3-1/2” BECO 3-1/2” API REG & 3-1/2” BECO 3, 3.6, 4.6, 6, 9.1, 10, 10.7 10, 12, 15, 20,30, 33, 35 DTH / Rotary
127 mm (5”) 12.7 mm (1/2”) 3-1/2” API REG & 3-1/2” BECO 3-1/2” API REG & 3-1/2” BECO 3, 3.6, 4.6, 6, 9.1, 10, 10.7 10, 12, 15, 20,30, 33, 35 DTH / Rotary
127 mm (5”) 19.05 mm (3/4”) 3-1/2” API REG & 3-1/2” BECO 3-1/2” API REG & 3-1/2” BECO 3, 3.6, 4.6, 6, 9.1, 10, 10.7 10, 12, 15, 20,30, 33, 35 Rotary
152 mm (6”) 19.05 mm (3/4”) 4-1/2” API REG & 4-1/2” BECO 4-1/2” API REG & 4-1/2” BECO 6, 7.62, 9.1 20, 25, 30 Rotary
152 mm (6”) 25 mm (1”) 4-1/2” API REG & 4-1/2” BECO 4-1/2” API REG & 4-1/2” BECO 6, 7.62, 9.1 20, 25, 30 Rotary
178 mm (7”) 25 mm (1”) 05-1/4” API REG & 05-1/4” BECO 05-1/4” API REG & 05-1/4” BECO 6, 7.62, 9.1, 10 20, 25, 30, 33 Rotary
203 mm (8”) 25 mm (1”) 05-1/4” API REG & 05-1/4” BECO 05-1/4” API REG & 05-1/4” BECO 7.62, 9.1, 10, 10.68 25, 30, 33, 35 Rotary
229 mm (9”) 25 mm (1”) 7” BECO 7” BECO 7.62, 10.68 25, 35 Rotary
254 mm (10”) 25 mm (1”) 8” BECO 8” BECO 7.62, 10.68 25, 35 Rotary

DTH Hammers

Hammer Size OD-”D” Without Bit-”L” Thread Connection-”T”
3 1/2” Hammer 82.2 mm 769 mm 2 3/8” API Reg.PIN
4 3/4” Hammer 106 mm 906 mm 2 3/8” API Reg. PIN
5” Hammer 118 mm 977.5 mm 2 7/8” API Reg. PIN
6” Hammer 148 mm 990 mm 2 7/8” API Reg. PIN
8” Hammer 180.3 mm 1070 mm 4 1/2” API Reg. PIN

DTH Button Bits

Description of Bit Size OF Bit – “D” No.of Buttons on face No.of Buttons on peripheral No.of Spliness on Shank Shank Length- “L”
3 1/2” Dia. Bit 90 mm 4 6 7 164.8
4 3/4” Dia Bit 121 mm 6 8 8 231
6” Dia. Bit 152 mm 8 8 8 195
6 1/2” Dia. Bit 165 mm 10 10 12 231
8” Dia Bit 203 mm 15 10 12 231

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