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Drilling tools

Home >> technical info >> Drilling rods and casing tubes size chart

We manufactures Wireline Drill Rods, from WLA to WLP, Parallel Threaded Drill Rods, DCDMA Sizes AW-HW, and Metric sizes 42mm to 90mm, Tapered Threaded Drill Rods, DCDMA Sizes AWY to NWY, AWJ, BWJ and S75 Drill Rods.

High-quality drill rods are usually on the Reverse-Circulation drill rig and they are made with high-grade alloy steel with a seamless drip and a high tensile factor. Most high-quality drill rods have a wear resistant drill pipe and this ensures that it has some longevity with an added durability. They are shock resistant have a resistance to abrasion, a high grade of machinability, and have been handle in high temperatures so the varying degrees would not affect its performance.

drilling rods

Factors such as drill rods have also contributed towards the mining industry. Their presence has allowed professionals to implement a thorough approach towards activities such as drilling and extracting. Presence of drill rods allow people to dig inside the ground and search for minerals. The composition of these drilling rods is such that they can easily withstand the hard rocks present below the soil and passes through them with a force whereby the mining activity can take place.

Drilling rods size chart
Size OD(mm) ID(mm)
WLA 44.7 37.3
WLB 55.7 46.1
WLN 70 60.2
WLH 89 78
WLP (PHD) 114.5 101.5
AW / AWJ / AWY 43.7 30.7
BW / BWJ / BWY 54 38
NW / NWY 66.8 51
HW 89 71
Φ42 42 30
Φ50 50 37
Φ60 60 48
Φ70 73 54.6
Φ90 89 69
s75 71 61


We manufactures Metric Casings, Flush-Jointed Casings, Flush-Coupled Casings. Casing thread is 4 threads per inch. Casing length is generally supplied with length 3.0m, 1.5m & 0.75m. Casing tubes are used in the walls of oil and gas wells as the structural retainer for protecting subsurface formations, offer protection of wellbore from collapsing.

Casing tubes are geological mining tools and designed to increase productivity while excavating minerals and precious metals. Tubes can be made from carbon and alloyed steel for durability. The dimensions of the tubes vary depending on the depth the miner is digging.

casing tubes

Metric series Casing tubes size chart
Size OD(mm) ID(mm)
46 44.15 37.15
56 54.15 47.15
66 64.25 57.25
76 74.25 67.25
86 84.25 77.25
101 98 88.3
116 113 103.3
131 128 118.3
146 143 133.3
Flush-Jointed W series Casing tubes size chart
Size OD(mm) ID(mm)
Inch mm Inch mm
BW 2.874 73 2.374 60.3
NW 3.5 88.9 3 76.2
HW 4.5 114.3 4 101.5
PW 5.5 139.7 5 127
Flush-Coupled X series Casing tubes size chart
Size OD(mm) ID(mm)
Inch mm Inch mm
NX 3.5 88.9 3 80.5
HX 4.5 114.3 3.937 104.4
PX 5.5 139.7 4.867 127
Flush-Jointed water well Casing tubes size chart (B.S.879)
Size OD(mm) ID(mm)
Inch mm Inch mm
4'' 4 1/2'' 114.3 3 7/8'' 98.3
5'' 5 1/2'' 139.7 4 7/8'' 123.7
6'' 6 5/8'' 168.3 5 7/8'' 149.3
8'' 8 5/8'' 193.7 7 7/8'' 174.7



We export impregnated and surface set diamond core bits, diamond casing and casing shoe bits, reaming shells, core barrels, drilling rods, overshots to world wide countries, such as USA united states, Germany, UK united kingdom, Italy, France, Turkey, Russia, Ukraine, Canada, South Africa, Philippines, Cambodia, Thailand, Malaysia, Australia, New Zealand, South Korea, Japan, Israel, Cyprus, Finland, Sweden, Norway, Danmark, Poland, Czech, Hungary, Switzerland, Ireland, Holand, Greece, Croatia, Spain, Portugal, Egypt, India, Singapore, Indonesia, Saudi Arabia, United Arab Emirates, Mexico, Brazil, Colombia, Peru, Chile, Argentina etc.

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